Sen. Kaine: ‘We need to trade out the Trump administration for one that stands for character, compassion, and competence.’

04:37

Senator Tim Kaine (D-VA), Hillary Clinton's 2016 running mate, joins MSNBC’s Craig Melvin to discuss the message at the DNC this week and speaks out against attacks on Kamala Harris. Kaine also shares what he wants to hear from Postmaster General DeJoy’s testimony before the Senate on Friday.