Rob Portman
Sen · Republican · OH
Where they stand
Every rated Senate member for the selected period — dots are members, the shaded band is the middle 50% of each party, the tick is the party median.
Trend vs. medians
Rob Portman's score per year against the Senate, party, and Congress-wide medians (rated members only).
By issue category
Rob Portman vs. the Republican median and the Senate median, per issue category.
Standout votes
Votes where Rob Portman broke from the Republican majority in the Senate.
▸Detailed score tables
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Frequently Asked Questions
What is Sen. Rob Portman's voting record?
Sen. Rob Portman (R-OH) earned a 50% Competitive Markets Action score for 2023, showing moderate alignment with competitive-markets and free-enterprise principles. Rob Portman serves Ohio in the U.S. Senate.
How aligned is Rob Portman with competitive-markets and free-enterprise principles?
Rob Portman earned a 50% Competitive Markets Action score in 2023, showing moderate alignment with competitive-markets and free-enterprise principles.
What is Rob Portman's CMA score?
Rob Portman has a 50% CMA score for 2023.
Where does Rob Portman serve?
Sen. Rob Portman (R-OH) serves Ohio in the U.S. Senate as a Republican.