 Vance is a convert, and converts can be really powerful messengers. And now that Vance supports Trump, he's a former never-Trumper and a relatively young never-Trumper, it's possible that J.D. Vance could reach a new voter or two. This is NPR News. In the Twin Cities, I'm Phil Picardi for NPR News. About 130 Minnesota National Guard soldiers and airmen are helping with security at this week's Republican National Convention in Milwaukee.