Dean Heller is the only Republican senator working to retain a seat in a state that went for Hillary Clinton in the 2016 presidential election. He’s received some support from President Donald Trump, who helped push his chief primary opponent out of the race after Heller jumped on board with Obamacare repeal, which failed.
The GOP tends to have stronger turnout in the midterms, though races in Texas and elsewhere have shown an uptick in Democratic turnout.
In Northern Nevada, Rep. Mark Amodei is also relatively safe in a district where Republicans have at least 48,000 more active registered voters than Democrats. He supported tax reform in Congress and signed on to a discharge petition in the House to force a vote on the Dream Act, legislation offering deportation protection to certain young immigrants who are living in the country illegally.