RENO, Nev. (AP) — A pair of Republican congressional challengers are trying to unseat Democrats in key swing districts in Nevada while veteran incumbents from each party are expected to win re-election to the other two House seats.

Democratic Rep. Susie Lee is trying to fend off Republican Dan Rodimer, a former professional wrestler, in the 3rd District. Democratic Rep. Steven Horsford is up against former GOP state legislator Jim Marchant in the 4th.

Democrat Dina Titus is seeking a fifth term in the 1st District including the Las Vegas Strip. No Democrat has ever won the northern 2nd District where five-term Republican Mark Amodei is seeking re-election.