Now that Joe Biden has officially been tapped as Barack Obama's vice presidential nominee, it's worth looking back on some key video highlights from Biden's career.
1) Biden dramatically rips into the Bush administration's policy on Iraq on the Senate floor, shouting, "Mr. President, you're leading us off a cliff. Stop."
2) Biden blasts Rudy Giuliani: "Noun, verb, 9/11"
More Giuliani mocking
3) Biden talks foreign policy, rails at Iran legislation, at a debate last October in Philadelphia:
4) The lighter side: Biden on Real Time with Bill Maher, February 2007:
Late Night with David Letterman, August 2007:
5) Some of Biden's 2008 campaign ads: