September 5, 2012 2:46 am Michelle Obama Fires Up Democrats at DNC Michelle Obama topped off a night of DNC speeches from Newark Mayor Cory Booker, Senate Majority Leader Harry Reid, Chicago Mayor Rahm Emanuel, and San Antonio Mayor Julian Castro, the keynote speaker. US & World Videos 1:20 Gigi Hadid wows in sweeping Met Gala look 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 1:12 Ariana Grande channels Glinda at 2024 Met Gala 3:45 Gabrielle Union and Dwyane Wade's daughter had cutest reaction to mom's Met Gala dress 1:35 Rita Ora reveals Taika Waititi's last-minute change to her Met Gala dress: ‘Thank God'