Donald Trump and his Republican supporters have lost multiple challenges to the outcome of the November presidential election with Joe Biden.

But the current president has taken the rare step of personally backing a bid by 18 states to nullify the results of four crucial swing states.

The president is personally backing a U.S. Supreme Court lawsuit led by Texas.

“We have tremendous cases right now, a big, big case, in 18 states as of this moment, 18 states. They joined out of respect and out of love," Trump said.

Texas wants the Supreme Court to invalidate election results in Georgia, Michigan, Pennsylvania and Wisconsin, critical swing states whose certified results have prompted multiple and failed Republican legal challenges.

The lawsuit aims to deny Joe Biden the combined 62 Electoral College votes those four states contribute in order to give Trump a winning tally.

But apart from previous legal challenges failing and two certified recounts in the case of Georgia, some legal experts say Texas has no grounds to challenge how other states conducted their ballots or counted their votes.

And on Tuesday, the Supreme Court rejected a Republican bid to stop Pennsylvania certifying the results that gave Biden enough Electoral College votes to win.

The Electoral College meets on December 14th to cast its votes.

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