One of the last Republican House primaries of the midterm cycle has emerged as a proxy battle between House GOP leaders and factions of the Republican party.
Candidates vying to face vulnerable Democratic Rep. Chris Pappas in New Hampshire’s 1st Congressional District are jockeying over how Trumpy and conservative they are, as millions of outside dollars are being poured into the race and attacks have gotten personal in the run-up to the Tuesday primary.
Matt Mowers, a former Trump appointee in the State Department, has the endorsement of House Minority Leader Kevin McCarthy (R-Calif.) and Minority Whip Steve Scalise (R-La.), as well as Sen. Tom Cotton (R-Ark.), former Secretary of State Mike Pompeo and former United Nations Ambassador Nikki Haley.
His closest competition is Karoline Leavitt, a 25-year-old former press aide in the Trump White House and in House…