Cosponsorship

Who signs on to whose bills, and how often it crosses party lines.

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117th Congress

Most bills cosponsored

Bills and joint resolutions the member signed on to support.

House

#	Member	Party	State	Cosponsored	Across party	Across %
1	Eleanor Holmes Norton	D	DC	1600	51	3.2
2	Brian K. Fitzpatrick	R	PA	1092	888	81.3
3	Steve Cohen	D	TN	933	68	7.3
4	André Carson	D	IN	869	35	4.0
5	Barbara Lee	D	CA	837	21	2.5
6	Earl Blumenauer	D	OR	831	21	2.5
7	Raúl M. Grijalva	D	AZ	814	25	3.1
8	Janice D. Schakowsky	D	IL	804	21	2.6
9	Dina Titus	D	NV	780	54	6.9
10	Jahana Hayes	D	CT	769	19	2.5
11	Mark DeSaulnier	D	CA	718	30	4.2
12	Ro Khanna	D	CA	713	54	7.6
13	Nanette Diaz Barragán	D	CA	713	27	3.8
14	James P. McGovern	D	MA	708	27	3.8
15	Ted Lieu	D	CA	689	48	7.0

Senate

#	Member	Party	State	Cosponsored	Across party	Across %
1	Richard Blumenthal	D	CT	723	89	12.3
2	Cory A. Booker	D	NJ	574	53	9.2
3	Amy Klobuchar	D	MN	549	99	18.0
4	Tina Smith	D	MN	542	85	15.7
5	Chris Van Hollen	D	MD	538	74	13.8
6	Dianne Feinstein	D	CA	522	94	18.0
7	Elizabeth Warren	D	MA	512	47	9.2
8	Alex Padilla	D	CA	493	49	9.9
9	Jeff Merkley	D	OR	469	37	7.9
10	Edward J. Markey	D	MA	463	33	7.1
11	Sherrod Brown	D	OH	457	68	14.9
12	Kirsten E. Gillibrand	D	NY	452	59	13.1
13	Tammy Baldwin	D	WI	438	67	15.3
14	Richard J. Durbin	D	IL	433	57	13.2
15	Ron Wyden	D	OR	433	42	9.7

Most likely to cosponsor across party lines

Share of the member's cosponsorships on bills sponsored by the other party. Minimum 50 comparable cosponsorships.

House

#	Member	Party	State	Across %	Across party	Counted
1	Brian K. Fitzpatrick	R	PA	81.3	888	1092
2	John Katko	R	NY	68.7	261	380
3	Fred Upton	R	MI	68.3	129	189
4	Aumua Amata Coleman Radewagen	R	AS	66.9	87	130
5	Jenniffer González-Colón	R	PR	66.3	181	273
6	Don Bacon	R	NE	60.5	365	603
7	Don Young	R	AK	60.2	147	244
8	Tom Reed	R	NY	58.8	80	136
9	Adam Kinzinger	R	IL	58.0	91	157
10	Jaime Herrera Beutler	R	WA	57.7	123	213
11	Anthony Gonzalez	R	OH	56.9	124	218
12	Mark E. Amodei	R	NV	56.1	87	155
13	Young Kim	R	CA	55.8	179	321
14	Tom Cole	R	OK	53.0	158	298
15	Michael R. Turner	R	OH	52.2	94	180

Senate

#	Member	Party	State	Across %	Across party	Counted
1	Susan M. Collins	R	ME	70.7	282	399
2	Rob Portman	R	OH	63.9	154	241
3	Lisa Murkowski	R	AK	63.7	165	259
4	Roy Blunt	R	MO	53.1	93	175
5	Shelley Moore Capito	R	WV	51.5	157	305
6	Todd Young	R	IN	49.0	102	208
7	Margaret Wood Hassan	D	NH	46.3	176	380
8	Jerry Moran	R	KS	45.9	118	257
9	Joe Manchin, III	I	WV	44.4	64	144
10	Kyrsten Sinema	I	AZ	44.3	128	289
11	Lindsey Graham	R	SC	43.8	64	146
12	Chuck Grassley	R	IA	43.8	119	272
13	Bill Cassidy	R	LA	43.0	116	270
14	John Cornyn	R	TX	42.2	122	289
15	Richard Burr	R	NC	42.1	51	121

Bills that attract the other party

Share of the member's own bills with at least one cosponsor from the other party. Minimum 10 bills sponsored.

House

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Ron Kind	D	WI	96.6	28	29
2	Abigail Davis Spanberger	D	VA	94.7	36	38
3	John Katko	R	NY	93.3	28	30
4	Josh Gottheimer	D	NJ	91.3	21	23
5	Hakeem S. Jeffries	D	NY	90.0	18	20
6	Anthony Gonzalez	R	OH	89.5	17	19
7	Michael F. Doyle	D	PA	85.7	12	14
8	David J. Trone	D	MD	85.0	34	40
9	Susan Wild	D	PA	83.3	20	24
10	Lois Frankel	D	FL	81.8	9	11
11	Chrissy Houlahan	D	PA	81.0	17	21
12	Glenn Thompson	R	PA	80.0	8	10
13	David P. Joyce	R	OH	79.3	23	29
14	Young Kim	R	CA	78.9	15	19
15	Jim Costa	D	CA	78.6	11	14

Senate

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Susan M. Collins	R	ME	95.3	41	43
2	John Cornyn	R	TX	89.2	91	102
3	Margaret Wood Hassan	D	NH	89.0	65	73
4	Gary C. Peters	D	MI	88.2	90	102
5	Todd Young	R	IN	88.2	30	34
6	Jacky Rosen	D	NV	88.1	59	67
7	Deb Fischer	R	NE	84.6	22	26
8	Rob Portman	R	OH	84.3	70	83
9	Kyrsten Sinema	I	AZ	81.2	26	32
10	John Boozman	R	AR	76.9	10	13
11	Chuck Grassley	R	IA	76.4	55	72
12	Christopher A. Coons	D	DE	74.5	41	55
13	Shelley Moore Capito	R	WV	73.9	17	23
14	Roger F. Wicker	R	MS	73.6	39	53
15	Jon Tester	D	MT	72.3	47	65

Most cosponsors per bill

Average number of cosponsors on the member's own bills. Minimum 10 bills sponsored.

House

#	Member	Party	State	Avg cosponsors	Sponsored
1	Lois Frankel	D	FL	67.0	11
2	Mike Quigley	D	IL	64.1	22
3	Robert C. "Bobby" Scott	D	VA	59.3	27
4	Katherine M. Clark	D	MA	52.8	11
5	Barbara Lee	D	CA	46.3	34
6	Jerrold Nadler	D	NY	45.8	24
7	Alan S. Lowenthal	D	CA	44.9	14
8	Diana DeGette	D	CO	44.6	14
9	Terri A. Sewell	D	AL	43.6	32
10	Thomas R. Suozzi	D	NY	42.0	20
11	David N. Cicilline	D	RI	40.9	36
12	John B. Larson	D	CT	39.9	15
13	Grace Meng	D	NY	37.3	35
14	Lloyd Doggett	D	TX	37.2	31
15	Lisa C. McClain	R	MI	37.1	18

Senate

#	Member	Party	State	Avg cosponsors	Sponsored
1	Mike Crapo	R	ID	14.9	20
2	Patty Murray	D	WA	12.2	45
3	Shelley Moore Capito	R	WV	10.5	23
4	Ron Johnson	R	WI	9.8	13
5	Debbie Stabenow	D	MI	9.4	39
6	John Boozman	R	AR	9.4	13
7	Tim Scott	R	SC	8.5	42
8	Kirsten E. Gillibrand	D	NY	8.2	83
9	Bill Hagerty	R	TN	7.8	23
10	Susan M. Collins	R	ME	7.8	43
11	Tim Kaine	D	VA	7.7	43
12	Richard Burr	R	NC	7.7	20
13	Edward J. Markey	D	MA	7.6	120
14	Sherrod Brown	D	OH	7.6	72
15	Maria Cantwell	D	WA	7.4	27

118th Congress

Most bills cosponsored

Bills and joint resolutions the member signed on to support.

House

#	Member	Party	State	Cosponsored	Across party	Across %
1	Eleanor Holmes Norton	D	DC	1598	194	12.1
2	Brian K. Fitzpatrick	R	PA	1051	677	64.4
3	Michael Lawler	R	NY	1039	383	36.9
4	Josh Gottheimer	D	NJ	906	370	40.8
5	Jill N. Tokuda	D	HI	882	153	17.3
6	Bob Good	R	VA	810	7	0.9
7	David J. Trone	D	MD	808	194	24.0
8	Barbara Lee	D	CA	806	65	8.1
9	Rashida Tlaib	D	MI	779	67	8.6
10	Donald G. Davis	D	NC	776	468	60.3
11	Raúl M. Grijalva	D	AZ	772	68	8.8
12	Matthew M. Rosendale, Sr.	R	MT	766	7	0.9
13	Elijah Crane	R	AZ	758	10	1.3
14	André Carson	D	IN	702	91	13.0
15	Bonnie Watson Coleman	D	NJ	681	64	9.4

Senate

#	Member	Party	State	Cosponsored	Across party	Across %
1	Richard Blumenthal	D	CT	618	77	12.5
2	Mike Braun	R	IN	572	156	27.3
3	Adam B. Schiff	D	CA	571	73	12.8
4	Peter Welch	D	VT	527	59	11.2
5	Alex Padilla	D	CA	520	69	13.3
6	Cory A. Booker	D	NJ	505	54	10.7
7	Elizabeth Warren	D	MA	491	41	8.4
8	Jeff Merkley	D	OR	489	43	8.8
9	Amy Klobuchar	D	MN	486	109	22.4
10	Marsha Blackburn	R	TN	463	113	24.4
11	Andy Kim	D	NJ	461	94	20.4
12	Tina Smith	D	MN	454	77	17.0
13	Ron Wyden	D	OR	454	39	8.6
14	Sheldon Whitehouse	D	RI	442	57	12.9
15	Rick Scott	R	FL	439	61	13.9

Most likely to cosponsor across party lines

Share of the member's cosponsorships on bills sponsored by the other party. Minimum 50 comparable cosponsorships.

House

#	Member	Party	State	Across %	Across party	Counted
1	Marcus J. Molinaro	R	NY	74.5	318	427
2	Susie Lee	D	NV	67.8	192	283
3	Brian K. Fitzpatrick	R	PA	64.4	677	1051
4	Chris Pappas	D	NH	60.7	286	471
5	Donald G. Davis	D	NC	60.3	468	776
6	Marie Gluesenkamp Perez	D	WA	57.8	181	313
7	Jared F. Golden	D	ME	57.1	129	226
8	Jeff Jackson	D	NC	56.5	108	191
9	Henry Cuellar	D	TX	56.1	125	223
10	Thomas R. Suozzi	D	NY	54.3	121	223
11	Vicente Gonzalez	D	TX	51.9	81	156
12	Yadira Caraveo	D	CO	49.4	276	559
13	Abigail Davis Spanberger	D	VA	49.1	173	352
14	Jason Crow	D	CO	48.6	186	383
15	Dean Phillips	D	MN	48.3	254	526

Senate

#	Member	Party	State	Across %	Across party	Counted
1	Susan M. Collins	R	ME	64.9	211	325
2	Lisa Murkowski	R	AK	64.6	155	240
3	Joe Manchin, III	I	WV	60.9	106	174
4	Gary C. Peters	D	MI	55.3	178	322
5	Margaret Wood Hassan	D	NH	54.1	133	246
6	Todd Young	R	IN	51.4	114	222
7	Raphael G. Warnock	D	GA	50.9	140	275
8	Jerry Moran	R	KS	48.2	121	251
9	Kyrsten Sinema	I	AZ	42.5	102	240
10	Shelley Moore Capito	R	WV	41.8	135	323
11	Thom Tillis	R	NC	41.4	176	425
12	Mitt Romney	R	UT	40.8	42	103
13	Bill Cassidy	R	LA	40.1	135	337
14	John Cornyn	R	TX	38.9	129	332
15	John Boozman	R	AR	38.4	101	263

Bills that attract the other party

Share of the member's own bills with at least one cosponsor from the other party. Minimum 10 bills sponsored.

House

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Abigail Davis Spanberger	D	VA	97.3	36	37
2	Chrissy Houlahan	D	PA	91.7	22	24
3	Greg Stanton	D	AZ	90.5	19	21
4	Glenn Thompson	R	PA	90.0	18	20
5	Debbie Wasserman Schultz	D	FL	87.5	21	24
6	Garret Graves	R	LA	86.4	19	22
7	Brian K. Fitzpatrick	R	PA	85.7	48	56
8	Mike Carey	R	OH	85.7	24	28
9	Zachary Nunn	R	IA	85.4	41	48
10	Jennifer A. Kiggans	R	VA	85.0	17	20
11	Marcus J. Molinaro	R	NY	84.4	38	45
12	Gregorio Kilili Camacho Sablan	D	MP	84.2	16	19
13	David P. Joyce	R	OH	83.9	26	31
14	Donald G. Davis	D	NC	83.3	20	24
15	Jim Costa	D	CA	83.3	15	18

Senate

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Margaret Wood Hassan	D	NH	100.0	53	53
2	Susan M. Collins	R	ME	96.3	26	27
3	Joe Manchin, III	I	WV	92.9	39	42
4	Todd Young	R	IN	90.9	30	33
5	Christopher A. Coons	D	DE	84.5	49	58
6	Shelley Moore Capito	R	WV	81.8	18	22
7	Chuck Grassley	R	IA	81.4	48	59
8	John Cornyn	R	TX	81.3	87	107
9	John W. Hickenlooper	D	CO	80.4	37	46
10	Gary C. Peters	D	MI	79.6	121	152
11	Jacky Rosen	D	NV	78.6	44	56
12	Kyrsten Sinema	I	AZ	76.5	26	34
13	Thomas R. Carper	D	DE	76.0	19	25
14	Mitt Romney	R	UT	74.1	20	27
15	Deb Fischer	R	NE	73.5	25	34

Most cosponsors per bill

Average number of cosponsors on the member's own bills. Minimum 10 bills sponsored.

House

#	Member	Party	State	Avg cosponsors	Sponsored
1	Robert C. "Bobby" Scott	D	VA	58.5	18
2	Henry C. "Hank" Johnson, Jr.	D	GA	55.3	18
3	Andrew S. Clyde	R	GA	54.4	16
4	Terri A. Sewell	D	AL	48.4	16
5	Lloyd Doggett	D	TX	45.6	21
6	John H. Rutherford	R	FL	45.1	10
7	Seth Moulton	D	MA	45.0	10
8	Pramila Jayapal	D	WA	44.3	28
9	Michael T. McCaul	R	TX	42.7	23
10	Lucy McBath	D	GA	42.0	13
11	Rosa L. DeLauro	D	CT	39.6	37
12	André Carson	D	IN	38.5	11
13	Barbara Lee	D	CA	37.0	40
14	Yvette D. Clarke	D	NY	36.0	22
15	Ayanna Pressley	D	MA	34.7	30

Senate

#	Member	Party	State	Avg cosponsors	Sponsored
1	Adam B. Schiff	D	CA	23.3	64
2	Mike Crapo	R	ID	20.9	14
3	Patty Murray	D	WA	16.7	33
4	Shelley Moore Capito	R	WV	12.5	22
5	Bill Hagerty	R	TN	11.7	31
6	Katie Boyd Britt	R	AL	11.4	14
7	Tim Scott	R	SC	11.4	44
8	John Boozman	R	AR	11.3	11
9	Kevin Cramer	R	ND	9.4	16
10	Ron Johnson	R	WI	8.5	14
11	Cindy Hyde-Smith	R	MS	8.4	18
12	Susan M. Collins	R	ME	8.2	27
13	Jon Tester	D	MT	8.0	62
14	Sherrod Brown	D	OH	8.0	75
15	Tommy Tuberville	R	AL	8.0	20

119th Congress

Most bills cosponsored

Bills and joint resolutions the member signed on to support.

House

#	Member	Party	State	Cosponsored	Across party	Across %
1	Eleanor Holmes Norton	D	DC	1695	192	11.3
2	Brian K. Fitzpatrick	R	PA	1134	804	70.9
3	Eugene Simon Vindman	D	VA	1025	688	67.2
4	Michael Lawler	R	NY	984	439	44.6
5	Rashida Tlaib	D	MI	969	85	8.8
6	Shri Thanedar	D	MI	920	157	17.1
7	Josh Gottheimer	D	NJ	846	427	50.5
8	André Carson	D	IN	772	99	12.8
9	Henry C. "Hank" Johnson, Jr.	D	GA	721	64	8.9
10	Daniel S. Goldman	D	NY	636	99	15.6
11	Sarah McBride	D	DE	623	185	29.7
12	Raja Krishnamoorthi	D	IL	618	126	20.4
13	Angie Craig	D	MN	615	184	29.9
14	Dina Titus	D	NV	611	135	22.1
15	Donald G. Davis	D	NC	610	417	68.4

Senate

#	Member	Party	State	Cosponsored	Across party	Across %
1	Richard Blumenthal	D	CT	668	124	18.6
2	Cory A. Booker	D	NJ	584	100	17.1
3	Jeff Merkley	D	OR	576	79	13.7
4	Amy Klobuchar	D	MN	520	171	32.9
5	Peter Welch	D	VT	516	106	20.5
6	Alex Padilla	D	CA	515	96	18.6
7	Chris Van Hollen	D	MD	494	57	11.5
8	Adam B. Schiff	D	CA	485	91	18.8
9	Ron Wyden	D	OR	465	51	11.0
10	Christopher A. Coons	D	DE	450	185	41.1
11	Kirsten E. Gillibrand	D	NY	438	93	21.2
12	Elizabeth Warren	D	MA	426	42	9.9
13	Marsha Blackburn	R	TN	417	86	20.6
14	Tammy Duckworth	D	IL	415	73	17.6
15	Mazie K. Hirono	D	HI	405	58	14.3

Most likely to cosponsor across party lines

Share of the member's cosponsorships on bills sponsored by the other party. Minimum 50 comparable cosponsorships.

House

#	Member	Party	State	Across %	Across party	Counted
1	Laura Gillen	D	NY	78.0	224	287
2	Susie Lee	D	NV	74.0	219	296
3	Brian K. Fitzpatrick	R	PA	70.9	804	1134
4	Donald G. Davis	D	NC	68.4	417	610
5	Eugene Simon Vindman	D	VA	67.2	688	1024
6	Henry Cuellar	D	TX	67.1	114	170
7	Marie Gluesenkamp Perez	D	WA	66.2	131	198
8	Jared F. Golden	D	ME	59.8	125	209
9	Adam Gray	D	CA	55.7	78	140
10	Gabe Vasquez	D	NM	53.8	182	338
11	Vicente Gonzalez	D	TX	53.2	100	188
12	Jason Crow	D	CO	52.8	132	250
13	Chris Pappas	D	NH	52.1	174	334
14	James C. Moylan	R	GU	52.0	128	246
15	Josh Gottheimer	D	NJ	50.5	427	846

Senate

#	Member	Party	State	Across %	Across party	Counted
1	Margaret Wood Hassan	D	NH	69.4	172	248
2	Raphael G. Warnock	D	GA	62.1	175	282
3	Lisa Murkowski	R	AK	59.6	118	198
4	Susan M. Collins	R	ME	58.1	136	234
5	Gary C. Peters	D	MI	50.5	103	204
6	Jon Ossoff	D	GA	47.3	87	184
7	Rand Paul	R	KY	44.8	26	58
8	Catherine Cortez Masto	D	NV	44.4	144	324
9	John R. Curtis	R	UT	43.5	83	191
10	Mark Kelly	D	AZ	42.9	139	324
11	Christopher A. Coons	D	DE	41.1	185	450
12	Mark R. Warner	D	VA	40.6	110	271
13	Todd Young	R	IN	37.3	69	185
14	Elissa Slotkin	D	MI	37.0	90	243
15	Angus S. King, Jr.	I	ME	36.7	121	330

Bills that attract the other party

Share of the member's own bills with at least one cosponsor from the other party. Minimum 10 bills sponsored.

House

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Laura Gillen	D	NY	100.0	22	22
2	Michael T. McCaul	R	TX	100.0	10	10
3	Jim Costa	D	CA	91.7	22	24
4	Glenn Thompson	R	PA	90.3	28	31
5	Darin LaHood	R	IL	90.0	27	30
6	Sarah McBride	D	DE	90.0	9	10
7	Maggie Goodlander	D	NH	88.2	15	17
8	Greg Stanton	D	AZ	87.5	21	24
9	Jennifer A. Kiggans	R	VA	86.0	43	50
10	Susie Lee	D	NV	85.7	24	28
11	Zachary Nunn	R	IA	84.6	44	52
12	Brian K. Fitzpatrick	R	PA	83.1	59	71
13	William R. Keating	D	MA	81.8	18	22
14	Lisa C. McClain	R	MI	81.2	13	16
15	Michael R. Turner	R	OH	80.0	8	10

Senate

#	Member	Party	State	Bipartisan %	Bipartisan bills	Sponsored
1	Margaret Wood Hassan	D	NH	100.0	55	55
2	David McCormick	R	PA	95.5	42	44
3	Susan M. Collins	R	ME	95.5	21	22
4	Gary C. Peters	D	MI	85.5	65	76
5	Todd Young	R	IN	82.1	46	56
6	Christopher A. Coons	D	DE	81.8	45	55
7	John Thune	R	SD	81.0	17	21
8	Chuck Grassley	R	IA	80.6	54	67
9	John W. Hickenlooper	D	CO	80.0	28	35
10	Roger F. Wicker	R	MS	79.4	27	34
11	Amy Klobuchar	D	MN	77.2	61	79
12	Lisa Murkowski	R	AK	75.5	40	53
13	John Boozman	R	AR	73.7	14	19
14	Thom Tillis	R	NC	72.5	37	51
15	Shelley Moore Capito	R	WV	72.0	18	25

Most cosponsors per bill

Average number of cosponsors on the member's own bills. Minimum 10 bills sponsored.

House

#	Member	Party	State	Avg cosponsors	Sponsored
1	Rosa L. DeLauro	D	CT	57.0	33
2	Robert C. "Bobby" Scott	D	VA	53.7	19
3	Brad Sherman	D	CA	49.7	13
4	Mike Thompson	D	CA	47.6	20
5	Henry C. "Hank" Johnson, Jr.	D	GA	46.6	14
6	André Carson	D	IN	45.3	10
7	Lizzie Fletcher	D	TX	44.8	10
8	Lucy McBath	D	GA	39.6	18
9	Tom Emmer	R	MN	39.0	10
10	Terri A. Sewell	D	AL	37.4	14
11	Pramila Jayapal	D	WA	36.7	41
12	Michael T. McCaul	R	TX	36.6	10
13	Mike Kelly	R	PA	34.9	32
14	Richard Hudson	R	NC	34.5	17
15	John B. Larson	D	CT	34.3	13

Senate

#	Member	Party	State	Avg cosponsors	Sponsored
1	Mike Crapo	R	ID	15.6	25
2	Patty Murray	D	WA	12.7	40
3	Katie Boyd Britt	R	AL	9.7	27
4	Susan M. Collins	R	ME	9.3	22
5	Steve Daines	R	MT	9.2	51
6	Charles E. Schumer	D	NY	8.3	26
7	Kevin Cramer	R	ND	8.1	28
8	Bill Hagerty	R	TN	8.1	26
9	Tammy Baldwin	D	WI	8.0	49
10	Markwayne Mullin	R	OK	7.9	19
11	Mazie K. Hirono	D	HI	7.9	41
12	Brian Schatz	D	HI	7.7	49
13	Lindsey Graham	R	SC	7.5	24
14	Richard Blumenthal	D	CT	7.4	109
15	Bernard Sanders	I	VT	7.2	54

Cosponsorship counts bills and joint resolutions only. A cosponsorship is across party lines when the cosponsor and the bill's sponsor are in different parties; independents who caucus with a party count as part of it, and members outside both caucuses are left out of the percentages. Totals can differ slightly from Congress.gov because of withdrawn cosponsors. The 119th Congress is still in progress.