A new poll finding Vice President Kamala Harris leading former President Donald Trump by six points in the upcoming presidential election has shocked political insiders and experts. The Marquette Law School Poll national survey found Harris preferred by 53 percent of likely voters while Trump was the choice of only 47 percent, according to a Wednesday press release. In May, the same poll found Trump leading President Joe Biden by two points, with a 51-49 split among likely voters. Jenna Ellis, the former Trump attorney who took a plea deal in his Georgia election racketeering case, cast blame …