Becomes 5th incumbent to lose this year
A handful of interesting races to watch, including Dem. Senate primary in Colorado and a very tight GOP gubernatorial race in Utah.
McGrath held off a late challenge from Charles Booker
Charles Booker and Amy McGrath are nearly tied, with results from the state's two largest cities still outstanding
Like neighboring Washington state, it is a blue state overall, but with starkly different politics on either side of the Cascade Range