Yes, we have. The same people swearing solidly conservative Pat Roberts will "veer leftward" were making that prediction about solidly conservative Mike Enzi a few months ago.
They swore up and down that Enzi is "only voting conservative to win a GOP primary" and that Liz Cheney was "forcing him to the right". Without Liz in the race, they told us, Enzi wouldn't have to worry about re-election so he'd "work across the aisle with his Barack Obama and Democrat pals"
On January 6, 2014, Cheney announced she had withdrawn from the race. This ensured Mike Enzi would not have anyone "challenging him from the right" and he is considerd ultra safe in November, facing only token Democrat opposition that he is polling 40 points ahead of.
And he's still been voting solidly conservative anyway. Funny how that works.
A good challenger is never a bad thing. I was with Pat till this past month. I feel I can vote for Orman and Roberts will win without me anyways. It’s my protest against the system vote.