Vice President Kamala Harris, the de-facto Democratic presidential nominee, has agreed to debate Republican Donald Trump on September 10 in an event host by ABC News. The ex-president and convicted felon had agreed to that debate when President Joe Biden was the presumptive nominee, but after he ended his re-election campaign Sunday, Trump announced he wanted Fox News to host the debate. “I’m ready to debate Donald Trump,” Harris told reporters Wednesday from an airport tarmac, CNBC reported. “I have agreed to the previously agreed-upon September 10 debate. He agreed to that, previously. Now i…