Vice President Joe Biden  acknowledged it wasn't a political event, but it still didn't prevent him from sending this warning to Teamsters union members during his address at their annual convention in Las Vegas this past Friday.

"And don't any of you, by the way, any of you guys vote Republican," Biden said. "I'm not supposed to say, this isn't political. ...don't come to me if you do! You're on your own, Jack!"

Biden provided the closing address at the 28th Annual International Brotherhood of Teamsters Convention at the Paris Hotel on Friday. The Vice President, who is known for his straightforward style, didn't hide his feelings about the current labor union fights across the country. He believes they are under attack by his Republican rivals for no apparent reason.