 Lots of clouds, 74 degrees in Middletown, 75 degrees in Wilmington, 79 in Georgetown and Rehoboth Beach. And with some sun, it is 76 degrees in Dover at nine o'clock. Welcome to NewsHour from the BBC World Service. I'm Celia Hatton. J.D. Vance joins Donald Trump on the Republican ticket in his first speech as nominee for vice president.