The Trump administration this week, amid widespread protests in Iran, said that money given to the Iranian government through the nuclear deal orchestrated by the Obama-Biden administration had gone directly to terrorism, and that the previous administration hadn’t stepped up for protesters. But former Vice President Joe Biden pushed back against that criticism Thursday in an interview with PBS NewsHour’s Judy Woodruff, pointing to President Donald Trump's travel ban and how it limits Iranian protesters' ability to enter the U.S.