First lady Michelle Obama speaks during a campaign rally for Democratic presidential candidate Hillary Clinton, Oct. 4, 2016, in Charlotte, N.C. The first lady, who has stumped for Clinton several times over the last month, is scheduled to head to Southern New Hampshire University for a rally today. Michelle Obama's use of the phrase "When they go low, we go high" at the Democratic National Convention this summer has since become a campaign motto of sorts for the Clinton campaign.