Retiring Sen. Jeff Flake (R-Ariz.) said in a new interview that the Republican Party has been inured to danger of President Trump's continued criticism of special counsel Robert Mueller. "It’s like the party is a frog slowly boiling in water, being conditioned to not be worried, to not think too hard about what’s happening around them,” Flake told The Washington Post. “They feel at a loss about what to do because it’s the president’s party, without any doubt," he said. "So, there’s a lot of whistling by the graveyard these days.”