House Republicans are ramping up their push to protect one of the narrowest majorities in modern history, sending Rep. Brian Jack (R-GA) on a recruitment swing on Tuesday through two Democratic-held House districts that President Donald Trump carried in the last election.

Republicans currently hold a 219–212 edge in the House, with three Democratic seats vacant following the recent deaths of Reps. Raúl Grijalva (D-AZ), Sylvester Turner (D-TX), and Gerry Connolly (D-VA), along with one Republican seat left open by resignation. Special elections are scheduled to fill these seats later this year.