The National Republican Congressional Committee (NRCC) has canceled more than $1.2 million in late advertising in the expensive Las Vegas media market, a sign the party no longer has confidence it can win a key swing seat.

The NRCC had spent about $3 million on advertisements bolstering former Rep. Cresent Hardy (R), who is making a bid to return to Congress after losing his seat in 2016.

Hardy faces a rematch against the man he beat in 2014, former Rep. Steven Horsford Steven Alexander HorsfordThe robbing of a wildlife refuge in Nevada Rep. Steven Horsford wins Democratic House primary in Nevada Overnight Defense: Army now willing to rename bases named after Confederates | Dems demand answers on 'unfathomable' nuke testing discussions | Pentagon confirms death of north African al Qaeda leader MORE (D). The rematch is taking place after the current incumbent, Rep. Ruben Kihuen Ruben Jesus KihuenRep. Steven Horsford wins Democratic House primary in Nevada Members spar over sexual harassment training deadline Nevada Dem sanctioned for sexual misconduct announces city council bid MORE (D), is not seeking reelection after a single term in the face of allegations of improper behavior toward a staffer.

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The district, based in North Las Vegas and stretching into rural counties across the southern half of Nevada, favored Hillary Clinton Hillary Diane Rodham ClintonFox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio Trump, Biden court Black business owners in final election sprint The power of incumbency: How Trump is using the Oval Office to win reelection MORE by a narrow 49 percent to 45 percent margin over President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE in 2016.

The only public poll in the race, conducted last week by Emerson College, showed Horsford with a narrow 36 percent to 34 percent lead.

Privately, Republicans have said the race is not as close. One senior Republican official said the NRCC decided to move its money simply because it is needed in too many other places.

The Las Vegas media market has become one of the most heated television environments in the country in recent months, as Democrats and Republicans fight for two open U.S. House seats and in a competitive Senate contest and a blistering race for governor.

Supporters and opponents of a ballot measure to deconstruct the state’s energy monopoly have also spent tens of millions of dollars on advertising in Las Vegas, making it one of the most expensive markets in the nation.

Nevada’s 4th District was created after the 2010 census and the subsequent reapportionment process. Horsford, Hardy and Kihuen are the only three people to have held the seat.

Republican groups previously canceled their planned advertising in the second open seat, south of Las Vegas, after they lost faith in businessman Danny Tarkanian’s (R) ability to beat philanthropist Susie Lee (D).