Rep. Shelley Moore CapitoShelley Wellons Moore CapitoFamily, friends mourn death of Barbara Bush Lawmakers propose boosting park funding with oil money Lawmakers trade barbs, torch Trump at DC soiree MORE (R-W.Va.) will announce her bid for Democratic Sen. Jay RockefellerJohn (Jay) Davison RockefellerSenate GOP rejects Trump’s call to go big on gun legislation Overnight Tech: Trump nominates Dem to FCC | Facebook pulls suspected baseball gunman's pages | Uber board member resigns after sexist comment Trump nominates former FCC Dem for another term MORE's seat on Monday, according to the West Virginia Metro News.

The seven-term congresswoman declined to run against Democratic Sen. Joe ManchinJoseph (Joe) ManchinHeitkamp becomes first Dem to back Pompeo for secretary of State Trump eyes Cold War statute to keep coal burning: report Trump checkmates Democrats in sending Pompeo to North Korea MORE this year but is considered a strong contender for the seat.

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The 75-year-old Rockefeller is currently in his fifth term, and could retire, though he has not yet announced his plans for the upcoming cycle. He's won nearly all of his elections with sizable margins.

Her Senate bid means that Capito's 2nd District seat will be open in 2014.