MIAMI, FL - JULY 23:  Democratic vice presidential candidate U.S. Sen. Tim Kaine (D-VA) speaks during a campaign rally with Democratic presidential candidate former Secretary of State Hillary Clinton at Florida International University Panther Arena on July 23, 2016 in Miami, Florida. Hillary Clinton and  Tim Kaine made their first public appearance together a day after the Clinton campaign announced Senator Kaine as the Democratic vice presidential candidate.   (Photo by Justin Sullivan/Getty Images)