Republican presidential nominee Donald Trump complained Monday that presumed Democratic nominee Kamala Harris had declined to debate him on Fox News. As President Joe Biden was speaking at the Democratic National Convention, Trump used his Truth Social platform to gripe about Harris. “Comrade Kamala Harris has just informed us that she will NOT do the FoxNews Debate on September 4th,” Trump wrote. “I am not surprised by this development because I feel that she knows it is very difficult, at best, for her to defend her record setting Flip-Flopping on absolutely everything she once believed in.”…