WASHINGTON — A federal appeals court sided Tuesday with a House committee seeking access to former President Donald Trump’s tax returns, rejecting Trump’s contention that Congress was overstepping.The judges’ decision came as the former president continues to be embroiled in legal fights. On Monday, the FBI searched his Mar-a-Lago estate in Florida as part of an investigation into whether he took classified records from the White House.A three-judge panel of the U.S. Court of Appeals for the …