Republican strategist and CNN guest Erin Perrine warned Friday that Vice President Kamala Harris could face major issues on Election Day as her campaign has not yet shifted to a “get-out-the-vote” message. Polls between Harris and former President Donald Trump have tightened over the last month, with political pundits cautioning about how close the race will be in November. On “Erin Burnett OutFront,” the CNN host pressed Perrine on how Trump would respond to former President Barack Obama’s criticisms of him. READ: Trump Leads Harris In Wisconsin, Georgia, Michigan, Arizona, Pennsylvania, Nort…