Former President Donald Trump has repeatedly declared he won the debate against Vice President Kamala Harris, but his reactions show otherwise.Saul Loeb/AFP/Getty ImagesDonald Trump is boasting that he won the debate against Vice President Kamala Harris.But the former president's actions show he doesn't truly believe that.By Wednesday afternoon, Trump's words were far from the only sign of his defeat.It was a bad sign for former President Donald Trump when his campaign declared victory while his debate with Vice President Kamala Harris was still happening.Like his premature declaration in the wee hours after Election Day 2020, it gave off an aura of desperation, not confidence.By Wednesday morning, there were abundant signs that Trump lost his debate against Harris.