Mick Mulvaney backtracks as House prepares for more impeachment testimony

Acting White House chief of staff Mick Mulvaney is walking back Thursday's admission that aid to Ukraine was held up over debunked theories about the 2016 election. This comes as acting U.S. Ambassador to Ukraine William Taylor is expected to testify on Capitol Hill this week as part of the impeachment inquiry into President Trump. CBS News White House correspondent Paula Reid joins CBSN with the latest.