Who Joni Ernst votes with
Across 2037 divided votes — ones where both sides drew a real bloc. Unanimous votes are excluded: everyone agrees with everyone on those, so counting them would measure attendance rather than agreement.
Most often with
| Member | Party | Agreement |
|---|---|---|
| Alan Armstrong | R | 100.0% (133/133) |
| Bernie Moreno | R | 99.5% (783/787) |
| David McCormick | R | 99.5% (760/764) |
| James C. Justice | R | 99.5% (753/757) |
| Jim Banks | R | 99.5% (777/781) |
| John R. Curtis | R | 99.2% (766/772) |
| Tim Sheehy | R | 99.2% (761/767) |
| Ashley Moody | R | 99.1% (770/777) |
| Jon Husted | R | 98.7% (776/786) |
| Katie Boyd Britt | R | 97.4% (1221/1253) |
| Pete Ricketts | R | 97.0% (1240/1278) |
| Eric Schmitt | R | 96.2% (1230/1278) |
| Ted Budd | R | 96.2% (1222/1270) |
| John Barrasso | R | 95.7% (1822/1904) |
| Ted Cruz | R | 95.7% (1821/1903) |
| Tom Cotton | R | 95.7% (1903/1989) |
| Marsha Blackburn | R | 95.6% (1870/1957) |
| Tommy Tuberville | R | 95.6% (1854/1940) |
| James Lankford | R | 95.4% (1934/2027) |
| Rick Scott | R | 95.2% (1896/1991) |
Least often with
| Member | Party | Agreement |
|---|---|---|
| Lisa Blunt Rochester | D | 0.8% (6/785) |
| Angela D. Alsobrooks | D | 2.6% (20/777) |
| Chris Van Hollen | D | 3.8% (76/1987) |
| Jeff Merkley | D | 3.9% (78/1985) |
| Ron Wyden | D | 4.0% (81/2006) |
| Andy Kim | D | 4.0% (32/798) |
| Peter Welch | D | 4.1% (52/1259) |
| Patty Murray | D | 4.1% (81/1969) |
| Edward J. Markey | D | 4.1% (83/2004) |
| Elizabeth Warren | D | 4.2% (84/2016) |
| Christopher Murphy | D | 4.2% (83/1997) |
| Tina Smith | D | 4.3% (86/1983) |
| Mazie K. Hirono | D | 4.4% (90/2028) |
| Maria Cantwell | D | 4.4% (89/2026) |
| Tammy Baldwin | D | 4.6% (94/2024) |
| Richard Blumenthal | D | 4.6% (92/2014) |
| Brian Schatz | D | 4.6% (92/2008) |
| Adam B. Schiff | D | 4.6% (36/784) |
| Tammy Duckworth | D | 4.8% (93/1957) |
| Alex Padilla | D | 4.8% (95/1982) |
Only members with at least 20 comparable votes are listed. Agreement is not endorsement and not coordination — two members can vote the same way for opposite reasons, and the record almost never says why.