The U.S. Supreme Court is temporarily blocking a Virginia transgender student who was born a girl from using the boys' bathroom. A former administration official is coming out in favor of Donald Trump. And we have this hour's top trending stories in the U.S. Guests: Gayle Trotter, Chris Agee, Ken Vogel, Nicole Moschella, Jason Wert, Lisa Daftari. Trending Today USA 08-04-16 Part 3