The Electoral College formally elected Joe Biden as the President of the United States on Dec. 14, 2020, at The Queen Theater in Wilmington, Delaware.
So far, Trump had refused to accept the elections' results and had filed lawsuits in various states, asking for recounts and making false claims of voter fraud. However, election officials have said that the 2020 elections were one of the most secure in recent history, and there is no evidence that any voting system deleted or lost votes, changed votes, or was in any way compromised.
On Dec. 14, the Electoral College conclusively confirmed Joe Biden as the United States' next president, ratifying his November victory and refused Donald Trump's allegations of voter fraud.
Hence, Donald Trump has lost the 2020 Presidential Elections over Joe Biden.