Congressmen face voters every two years & this is the year, so the answer to your question is 100%. A better question to ask would be how many in “unsafe” districts voted for it.
Pelosi tried to get through on a minimum no of Dem votes so to protect Dems that could be put out by voting for the bailout, it backfired spectacularly when the Repubs called her game, realised what she was up to and voted accordingly to embarrass the hell out of her.