WASHINGTON (AP) - President Donald Trump vowed Thursday not to participate in next week's debate with Democratic nominee Joe Biden after organizers announced will take place virtually because of the president's diagnosis of COVID-19.“I’m not going to do a virtual debate" with Biden, Trump told Fox News, moments after the Commission on Presidential Debates announced the changes due to Trump's diagnosis.That cast serious doubts on whether the event will go forward, even as Biden's campaign vowed that its candidate will participate.“Vice President Biden looks forward to speaking directly to the American people," deputy Biden campaign manager Kate Bedingfield said in a statement.It is more evidence that the race remains defined by the virus,.