Obama Torches Trump Republicans In Massive MAGA Takedown

A fiery former President Barack Obama hits the campaign trail stumping for Democrats in Georgia, Pennsylvania and Wisconsin. In a speech that went viral, Obama laced into Wisconsin Republican Senator Ron Johnson for trying to cut social security. The Democratic candidate running against Johnson, Wisconsin Lieutenant Governor Mandela Barnes, joins MSNBC’s Ari Melber on stumping with Obama and the “Obama effect.”