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Grassley, Chuck

Grassley, Chuck

R · Republican Iowa senate

Term since 1981

2,782
119th Congress Pts
Jan 2025 – present

Legislator Scorecard

Ranked among 100 Senators · 119th Congress

A snapshot of how active this member has been in the 119th Congress, ranked against the other Senators in their chamber. Percentiles show where they land versus their peers, higher means more active. Everything below reflects recorded legislative work only, never party or position.

Legislative profile
Bill Author
Leads on legislation, introduces bills at a high rate for the chamber.
Overall activity
#36 of 100
Top 36% of Senators
Vote participation
97%
891 of 915 recorded votes
Cross-party cosponsorships 26% of cosponsorships· #51 in chamber ↗
Cross-party votes 1 of the other party’s bills· #28 in chamber ↗
Floor votes 47th percentile
Bills introduced 85th percentile
Cosponsorships 25th percentile
Amendments 53rd percentile
Cross-party cosponsors 49th percentile
Cross-party votes 73rd percentile

Ranks compare legislative activity within the Senate only. Strictly non-partisan: based solely on recorded legislative activity, not positions or party.

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Points Breakdown

2nd Session · 2026
🗳️ Vote Cast Floor vote cast Earned each time the member votes yea or nay on a recorded floor vote. Roll-call votes are the clearest public record of where a member stands, and showing up to cast them is the most basic duty of the job.
236 votes +472 pts
✅ Passed Chamber Passes full chamber A sponsored bill won a majority vote in the full House or Senate. The large majority of introduced bills never reach a floor vote, let alone pass one.
6 bills +150 pts
🤜 Bill Cosponsored Co-sponsored a bill The member added their name in support of a colleague's bill. Co-sponsorship is the main way members build the coalitions a bill needs to advance, without being the lead sponsor.
74 bills +74 pts
❌ Missed Vote Missed vote The member was absent and cast no vote on a recorded question. Missed votes are tracked publicly and can signal anything from a scheduling conflict to disengagement, so this is a penalty by default.
20 missed -60 pts
🏛️ Passed Committee Passes committee A bill the member sponsored was approved by its committee and sent to the full chamber. Committees are where most bills stall, so clearing this step is a meaningful hurdle.
3 bills +45 pts
🌉 Bipartisan Bonus Bipartisan co-sponsor bonus Awarded when a co-sponsorship crosses party lines. Bipartisan support is one of the strongest predictors that a bill will actually become law, so it earns extra credit here.
14 bills +42 pts
📜 Bill Introduced (2–9 cosponsors) Bill introduced (2-9) A newly introduced bill that drew a small handful of co-sponsors. Early backers signal a member could line up support before the bill is even referred to committee.
7 bills +21 pts
✅ Amendment Adopted Amendment adopted One of the member's proposed amendments was accepted into the bill. Getting an amendment adopted takes negotiation and timing, so it rewards effective legislating, not just effort.
2 amendments +20 pts
📝 Amendment Sponsored Amendment sponsored The member proposed a specific change to a bill being debated. Amendments are how legislation gets shaped on the floor and in committee, line by line, before a final vote.
18 amendments +18 pts
📜 Commemorative Resolution Commemorative resolution A ceremonial resolution — recognizing a day, month, group, or event, or expressing the sense of the chamber (HRES / SRES / HCONRES / SCONRES). These cannot become law and are scored flat, regardless of how many co-sponsors they attract, so a commemorative never outscores substantive legislation.
14 bills +14 pts
📜 Bill Introduced (solo) Bill introduced (solo) The member formally introduced a bill with no co-sponsors. Thousands of bills are introduced each Congress and most never advance, but introducing one is how every law begins.
11 bills +11 pts
📢 Bill Introduced (10+ cosponsors) Bill introduced (10+) A new bill that launched with a broad coalition of 10 or more co-sponsors. A large co-sponsor list out of the gate is a strong early indicator that legislation could actually move.
1 bills +8 pts
🗳 Cross-Party Vote Cross-party vote bonus Awarded when a member votes yea on final passage of a substantive bill whose lead sponsor is from the other party. Voting to pass the other side's bill is a public, recorded act of reaching across the aisle, and it is rarer than a bipartisan co-sponsorship, so it earns more.
1 votes +5 pts
Session Total 820 pts

Points by Week

26 weeks
+13
+16
+24
+29
+19
+16
+12
+16
+26
+34
+30
-59
+38
+58
+54
+74
+106
+36
+23
+23
+24
+33
+101
+16
+15
+32
W1
W2
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
W14
W16
W17
W18
W19
W20
W21
W22
W23
W24
W25
W27
W28
W29
🗳️ Vote Cast
❌ Missed Vote
📜 Bill Introduced (solo)
📜 Bill Introduced (2–9 cosponsors)
📢 Bill Introduced (10+ cosponsors)
📜 Commemorative Resolution
🤜 Bill Cosponsored
🌉 Bipartisan Bonus
🗳 Cross-Party Vote
🏛️ Passed Committee
✅ Passed Chamber
📝 Amendment Sponsored
✅ Amendment Adopted

← scroll to see all 26 weeks →

Activity by Week

Week 29 Sep 28 – Oct 4
+32 pts this week
20 events W29 Total: +32 pts
Week 28 Sep 21 – Sep 27
+15 pts this week
9 events W28 Total: +15 pts
Week 27 Sep 14 – Sep 20
+16 pts this week
9 events W27 Total: +16 pts
Week 25 Aug 3 – Aug 9
+101 pts this week
24 events W25 Total: +101 pts
Week 24 Jul 27 – Aug 2
+33 pts this week
Jul 30, 2026 +1
17 events W24 Total: +33 pts
Week 23 Jul 20 – Jul 26
+24 pts this week
Jul 20, 2026 +1
Jul 20, 2026 +1
14 events W23 Total: +24 pts
Week 22 Jul 13 – Jul 19
+23 pts this week
Jul 14, 2026 +1
Jul 14, 2026 +1
Jul 14, 2026 +1
Jul 14, 2026 +1
14 events W22 Total: +23 pts
Week 21 Jun 22 – Jun 28
+23 pts this week
12 events W21 Total: +23 pts
Week 20 Jun 15 – Jun 21
+36 pts this week
12 events W20 Total: +36 pts
Week 19 Jun 8 – Jun 14
+106 pts this week
Jun 11, 2026 +1
16 events W19 Total: +106 pts
Week 18 Jun 1 – Jun 7
+74 pts this week
38 events W18 Total: +74 pts
Week 17 May 18 – May 24
+54 pts this week
May 18, 2026 +1
18 events W17 Total: +54 pts
Week 16 May 11 – May 17
+58 pts this week
19 events W16 Total: +58 pts
Week 14 Apr 27 – May 3
+38 pts this week
Apr 28, 2026 +1
19 events W14 Total: +38 pts
Week 13 Apr 20 – Apr 26
-59 pts this week
21 events W13 Total: -59 pts
Week 12 Apr 13 – Apr 19
+30 pts this week
17 events W12 Total: +30 pts
Week 11 Mar 23 – Mar 29
+34 pts this week
Mar 25, 2026 +1
Mar 25, 2026 +1
18 events W11 Total: +34 pts
Week 10 Mar 16 – Mar 22
+26 pts this week
16 events W10 Total: +26 pts
Week 7 Feb 23 – Mar 1
+16 pts this week
11 events W7 Total: +16 pts
Week 6 Feb 9 – Feb 15
+19 pts this week
Feb 11, 2026 +1
11 events W6 Total: +19 pts
Week 5 Feb 2 – Feb 8
+29 pts this week
Feb 5, 2026 +1
15 events W5 Total: +29 pts
Week 4 Jan 26 – Feb 1
+24 pts this week
Jan 29, 2026 +1
15 events W4 Total: +24 pts