Washington (AP) — House Democrats are poised to pass a sweeping elections and ethics bill, offering it up as a powerful counterweight to voting rights restrictions advancing in Republican-controlled statehouses across the country.

House Resolution 1, which touches on virtually every aspect of the electoral process, would restrict partisan gerrymandering of congressional districts, strike down hurdles to voting and bring transparency to a murky campaign finance system that allows wealthy donors to anonymously bankroll political causes.

This bill "will put a stop at the voter suppression that we...