Day 3 takeaways: Obama drives parade of all-stars for Clinton

Three disciplines, one race.USA TODAY Sports

PHILADELPHIA — It was A-list night at the Democratic National Convention. Vice President Biden, former New York City mayor Michael Bloomberg (perhaps the nation's best-known independent pol) and vice presidential nominee Tim Kaine all addressed delegates.

And they were just the opening acts. Top takeaways from the penultimate night in Philadelphia: