Republican Sen. Jeff Flake won’t run for re-election

WASHINGTON —  Republican Sen. Jeff Flake of Arizona, who has sparred frequently with President Donald Trump, will not run for re-election, he said Tuesday in a blistering floor speech bemoaning the changing tenor of politics in the United States. “If I have been critical, it not because I relish criticizing the behavior of the President of the United States,” Flake said. “If I have been critical, it is because I believe that it is my obligation to do so, as […