From Wasserman Schultz to Goldman, Democratic incumbents are fighting for survival

As Democrats seek to reclaim power in November's midterm elections, some of the party's long-standing progressives are in danger of losing their seats.

The warning signs are flashing red in hotly contested primaries across the country, from a longtime ally of former House Speaker Nancy Pelosi, D-Calif., who is facing a challenger four decades younger, to a senior New York lawmaker seeking to fend off a Mamdani-backed opponent.

Not every race has a clear ideological divide, but every...