A group of 74 lawmakers has signed a letter urging Supreme Court Justice Clarence Thomas to recuse himself from cases involving the federal healthcare law because of his family’s financial ties to groups seeking its repeal. Thomas’s wife Virginia Thomas has started the lobbying firm Liberty Consulting in an effort to become the “ambassador to the Tea Party movement.” Justice Thomas has also been accused of failing to report his wife’s income of more than $600,000 from the right-wing groups Heritage Foundation and Liberty Central.