Democrats are running for office this year in record numbers. With filing deadlines passed in 30 states as of Wednesday, there are about 130 more Democrats than Republicans running for state House and roughly 30 more Democratic candidates running for state Senate, according to Ballotpedia data. (That’s after trailing Republicans in both since 2012.) Democrats could take back up to 10 state chambers—just in time for the redrawing of the congressional maps following the 2020 census. Here’s how they rank, from easiest to hardest to flip: