Editor's note: Keeping Them Honest, Anderson Cooper is fact-checking the claims made in the debate, and we'll have expert analysis of the candidates' facial expressions and body language. Watch AC360 tonight at 8 and 10 p.m. ET.
Vice President Joe Biden and Republican Paul Ryan, the man who wants his job, exchanged fire over taxes, Medicare, national security and some animated facial expressions in their only debate before Election Day.
Here are five things we learned from Thursday night:
1. Biden brought it
We expected Ryan, not Biden to bring a three-ring binder full of facts and figures to the debate. It's not that the data-driven Ryan didn't show up with an arm full of his statistics; it is just that Biden did so as well.
And Biden's aggressive offense from the very beginning drowned out Ryan until about 45 minutes into the debate.
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