Donald Trump was challenged on reports that he paid hardly any federal taxes in 2016 and 2017 during his first debate with Vice President Joe Biden Tuesday night.The New York Times has reported that Trump paid only $750 in those two years as he campaigned for and then began his presidency, and paid no taxes at all in 10 of the previous 15 years. ‘Shut up man’: Trump, Biden clash, interrupt each other during U.S.