Senator Sherrod Brown is betting that the issue will aid his re-election bid in Ohio, which recently upheld abortion rights. Allies of Senator Jon Tester of Montana are also hoping it helps.
While the party will be on defense in every competitive race, Republicans face some messy primaries and a recent history of nominating extreme candidates who have lost key contests.
The 2024 election map is a challenging one for Democrats — especially in states they need to hold for a majority. But the incumbents made a strong financial showing this quarter.