Sex assault allegation lingers after Joe Biden’s denial

Former U.S. vice-president Joe Biden is denying an allegation that he sexually assaulted a Senate staffer twenty-seven years ago. The allegation was made by Tara Reade in March. Reade was among the women who came forward last year to accuse Biden of inappropriate touching. With the 2020 U.S. election coming up, CBC Washington correspondent Paul Hunter reports on how the Democratic Party is responding to the allegation against their presumptive presidential candidate.