In this combination image from video, former first lady Michelle Obama, Sen. Bernie Sanders, I-Vt., and former Republican Ohio Gov. John Kasich speak during the first night of the Democratic National Convention on Monday, Aug. 17, 2020. But it was an opportunity for Democrats and some Republicans to rally behind Biden, the party's presidential nominee. Trump sought to undermine the Democrats' big night by hosting a political rally in Wisconsin, where Biden's party had originally planned this week's convention. The Republican president made two swing-state campaign appearances on Monday, first in Minnesota and then in Wisconsin, which was to be the location for the Democrats' convention before the coronavirus outbreak.