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Sen. Dean Heller of Nevada's tough road to reelection was hit with a new twist Tuesday.
Danny Tarkanian, a Nevada businessman and perennial political candidate, announced on "Fox & Friends" Tuesday that he would mount a primary challenge to Heller in 2018.
Tarkanian has run for office in Nevada five different times for a variety of offices. His latest bid in 2016 for the seat in Nevada's 3rd congressional district came up just shy. Tarkanian lost by about 1 point...