The first national poll released after Vice President Kamala Harris became the presumptive Democratic nominee puts her within striking distance of former President Donald Trump, with 47 percent support to Trump’s 49 percent. “Harris and former President Trump are in a race that is too close to call with Trump receiving 49 percent support and Harris receiving 47 percent support,” the poll found, according to a release. “There is no clear leader as the lead is within the margin of error.” The poll was conducted by Quinnipiac University from July 19th through July 21st and released on Monday. Wan…