**This Video was uploaded at "FOX 11 Los Angeles" Youtube Channel** br br Credit In Video TOO. br br Donald Trump and Vice President Kamala Harris have agreed to a presidential debate on Sept. 10. br br Donald Trump held a news conference Thursday at Mar-a-Lago, his Florida home, marking his first public appearance since Vice President Kamala Harris became the Democratic presidential nominee and selected Minnesota Gov. Tim Walz as her running mate.