Liz Cheney to challenge GOP senator

The U.S. Senate race in Wyoming has it all: A popular incumbent Republican facing a primary challenge, a GOP feud, a generational divide, and Dick Cheney, one of the most polarizing figures in politics.

Liz Cheney met with reporters in Casper on Wednesday, one day after announcing her bid for the seat. It came on the same day that three-term Republican Sen. Mike Enzi said he would run for re-election.