Trump adds campaign stops for Senate candidates in Montana, Arizona, Nevada

President Trump is scheduled to make three more campaign stops this week to bolster Republicans in key Senate races in the western U.S., his campaign announced late Saturday.

The president will make trips during the second half of the week to Montana, Arizona and Nevada, where Republican Senate candidates are locked in tight races that could help determine control of the upper chamber.

Trump will travel Thursday to Missoula, Mont., where he will likely stump for Matt Rosendale, who is attempting to unseat incumbent Sen. Jon Tester (D) in a state that Trump won by 20 points.

{mosads}The Cook Political Report rates the race as a “toss-up,” and a RealClearPolitics average of polls shows Tester with a 3 percentage point lead in his re-election bid.

On Friday, the president will also make a trip to Mesa, Ariz., where he is expected to boost Rep. Martha McSally (R) in her race against Rep. Krysten Sinema (D). The two women are vying to replace retiring Sen. Jeff Flake (R-Ariz.).

The race is considered a “toss-up” by Cook, and RealClearPolitics shows McSally with a narrow lead of 0.3 percentage points.

Former President George W. Bush and Utah Senate candidate Mitt Romney (R) are expected to stop in Arizona in the coming days to help bolster McSally’s support among more moderate Republicans.

Trump on Saturday will return to Nevada for another appearance likely in support of Sen. Dean Heller (R-Nev.), who is one of the most vulnerable Republican senators up for re-election. The president was in Las Vegas for a rally roughly three weeks ago in the state that he lost to Hillary Clinton in 2016 by 2 points.

Cook Political Report rates the Nevada race as a “toss-up,” while a RealCearPolitics average of polls shows Heller with an edge of 2 percentage points.

Trump has held a flurry of campaign rallies in recent weeks as he attempts to aid Republicans hoping to hold onto majorities in the Senate and House. He has in recent weeks taken trips to Pennsylvania, Tennessee, Ohio, Kentucky, Kansas and West Virginia, among other locations.