Even amid controversy over the unpopular family separation policy, vulnerable red-state Democrats opened themselves up to a potent line of attack this week.

Republicans battling Democratic incumbents in states President Trump won saw an opportunity in Sen. Dianne Feinstein’s, D-Calif., “Keep Families Together Act,” a bill aimed at resolving the family separation problem that has unanimous Democratic support in the upper chamber. But even Sen. Susan Collins, R-Maine, has called the legislation “far too broad,” arguing “it would essentially prevent arrests within 100 miles of the border even if the person has committed a serious crime, or is suspected of terrorist activity.”