Tonight, Democratic Senator Joe Biden will officially throw his hat into the ring--already crammed full of hats--by announcing that he is planning to run for President in 2008. And he's going to do it on the Daily Show.

Okay, technically, he's already announced his Presidential bid in a thrilling heart-wrending must-see video on his website. But, he'll be making his first television announcement of his Presidential bid on the Daily Show.

With Biden's announcement, this makes a grand total of 3,731 Democratic candidates.

Watch Biden on his last Daily show appearance here.