MANCHESTER, N.H. – As she addressed a crushing crowd of volunteers and media at Donald Trump’s New Hampshire headquarters on Saturday, New York Rep. Elise Stefanik received a welcome chant. “VP! VP! VP!" one man shouted across the room. While vice presidential candidates typically aren't picked until after a candidate has locked down the nomination, Trump's decisive win in last week's Iowa caucuses and the departure of Florida Gov. Ron DeSantis from the race have only heightened what had already been a widespread sense of inevitability that he will be the Republican nominee. That has given the campaign trail stops...