PHILADELPHIA (AP) — The Latest on the Democratic National Convention (all times EDT):9:37 p.m.Vice President Joe Biden has wrapped up his speech to the Democratic convention by making a forceful case for American exceptionalism.He says the United States "does not scare easily," and when confronted with crisis, "we endure, we overcome and we always move forward."Biden says the 21st century "is going to be the American century."He [...]