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Senate Minority Leader Mitch McConnell of Ky.,  joined by his wife, former Labor Secretary Elaine Chao, celebrates with his supporters at an election night party in Louisville, Ky.,Tuesday, Nov. 4, 2014. McConnell won a sixth term in Washington, with his eyes on the larger prize of GOP control of the Senate. The Kentucky Senate race, with McConnell, a 30-year incumbent, fighting off a spirited challenge from Democrat Alison Lundergan Grimes, has been among the most combative and closely watched contests that could determine the balance of power in Congress. (AP Photo/J. Scott Applewhite)
Senate Minority Leader Mitch McConnell of Ky.,  joined by his wife, former Labor Secretary Elaine Chao, celebrates with his supporters at an election night party in Louisville, Ky.,Tuesday, Nov. 4, 2014. McConnell won a sixth term in Washington, with his eyes on the larger prize of GOP control of the Senate. The Kentucky Senate race, with McConnell, a 30-year incumbent, fighting off a spirited challenge from Democrat Alison Lundergan Grimes, has been among the most combative and closely watched contests that could determine the balance of power in Congress. (AP Photo/J. Scott Applewhite)

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GOP complications for McConnell's Senate

Presidential hopefuls who could run in 2016 may complicate Senate leadership for Sen. Mitch McConnell.

GOP complications for McConnell's Senate

Presidential hopefuls who could run in 2016 may complicate Senate leadership for Sen. Mitch McConnell.