Before he digs into the antics at this week's Democratic National Convention, David Letterman returned to air on Tuesday night with more material on last week's unforgettable RNC in Tampa, Florida.

After hearing how much fact-checking was required after GOP vice presidential candidate Paul Ryan addressed his party, Letterman was inspired to find out what other questionable claims the young congressman has made. Needless to say, the amount of "facts" Letterman came up with easily filled a "Top Ten List," including such gems as, "he invented bacon" and, "Mitt Romney's actually a lot of fun."

Watch the video above!

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