More than a year after Donald Trump was convicted in a Manhattan courtroom, federal appeals court judges in New York are now wrestling with the scope of a sweeping Supreme Court ruling that shields a president from criminal prosecution for actions tied to his “official” duties in office.

The president’s personal lawyers appeared before a federal appeals court Wednesday, urging a three-judge panel to transfer his state criminal case to federal court. Such a move would pave the way for him to eventually ask the Supreme Court to erase his criminal record by throwing out his conviction on presidential immunity grounds.

Five months after President Donald Trump was sentenced without penalty in the New York hush money case, his attorneys will square off again with prosecutors Wednesday in one of the first major tests of the Supreme Court’s landmark presidential immunity decision.