GOP to Trump: Change tune on mail-in voting or risk ugly November

(CNN)Republican officials throughout the country are reacting with growing alarm to President Donald Trump's attacks on mail-in ballots, saying his unsubstantiated claims of mass voting fraud are already corroding the views of GOP voters, who may ultimately choose not to vote at all if they can't make it to the polls come November. Behind the scenes, top Republicans are urging senior Trump campaign officials to press the President to change his messaging and embrace mail-in voting, warning that the party could lose the battle for control of Congress and the White House if he doesn't change his tune, according to multiple GOP sources. Trump officials, sources said, are fully aware of the...