President Joe Biden says he's 'happy to debate' Donald Trump. Trump says he's ready to go The Associated PressBiden says he's happy to debate Trump ahead of November's election CNN'The Five': Are Biden's aides trying to hide his shuffle? Fox NewsIn Howard Stern interview, Biden says he's 'happy' to debate Trump ABC NewsKarl Rove: Biden-Trump debate would be ‘most important' one since 1980 The Hill