What’s there to explain?
Trump is a former president (fact). Biden is the current president (fact). Time to move on unless you truly believe that the Jews are shooting laser from the sky and causing forest fires in California.
More than half of the country doesn’t believe the fraud is president. So no, we currently have two presidents.
In the same vein, just because the media convinced many that World War II was a criminal act (and thus convicted German generals and soldiers in a court of law), does not mean that WWII wasn’t a war.
It’s all a matter of perception!