Technically, a President doesn’t have to concede the election The recent democrat party precedent is that a losing candidate never has to admit the loss by conceding 
President Donald Trump does not need to concede to Democrat presidential nominee Joe Biden, since conceding a lost election is a custom in the U.S. but is not required by law.
Technically, a President doesn’t have to concede the election
According to the Constitution, the election isn’t official until after the Electoral College votes in December and Congress certifies it.
“The Senate counts the Electoral College votes, the Senate declares the winner,” Dr. Graber said. “Once the Senate declares a winner, it doesn’t matter what the president says.”
Even after the election is official, the current president continues with full executive powers until Inauguration Day.
“At 11:59 a.m., January 20, Donald Trump [or any President] has all the powers of the President,” Dr. Graber said. “At 12 o’clock, he’s got none of them.”
If the president still refuses to transition after the loss of those powers, at that point it does not matter.
We’ve seen this act withheld before in 2000. Back then-President Bill Clinton waited until the Electoral College meeting on Dec.14 to release the funds and access to the then-projected President George W. Bush.
Technically, a President doesn’t have to concede the election The recent democrat party precedent is that a losing candidate never has to admit the loss by conceding