The President Comments on Sen. Jeff Flake

Sen. Jeff Flake, R-Ariz., speaks during a television interview on Capitol Hill in Washington, Tuesday, Oct. 24, 2017. Flake announced he would not run for re-election in 2018, condemning in a speech aimed at President Donald Trump the "flagrant disregard of truth and decency" that is undermining American democracy. (AP Photo/Manuel Balce Ceneta)

Sen. Jeff Flake, R-Ariz., speaks during a television interview on Capitol Hill in Washington, Tuesday, Oct. 24, 2017. Flake announced he would not run for re-election in 2018, condemning in a speech aimed at President Donald Trump the “flagrant disregard of truth and decency” that is undermining American democracy. (AP Photo/Manuel Balce Ceneta)

Before boarding Marine Force One heading to Dallas, the President held an impromptu press conference and commented on Senator Jeff Flake (R-AZ).