Donald Trump has finally agreed to debate Vice President Kamala Harris — but only on traditionally Trump friendly Fox News, not on ABC as originally planned. There was no immediate word from the Harris campaign, which has mocked Trump for his reluctance to face his presumptive Democratic rival for the presidency on a debate stage. Trump presented his new scheme as already set in stone in a post on his social media platform. He claimed that the planned ABC debate has been “terminated” because President Joe Biden is no longer a candidate for the White House. His planned debate will be held Sept….