Senate Minority Leader Charles E. Schumer said Monday he plans to ask for a delay on the confirmation vote of Rex Tillerson, President Trump’s secretary of state pick, in the wake of the administration’s “extreme vetting” immigration executive order and resulting fallout. “Because when he was questioned in committee and asked about a future Muslim ban, [because] we didn’t know that it was occurring, he was very mealy-mouthed,” Mr. Schumersaid of Mr. Tillerson on NBC’s “Today” program