According to the Center for Responsive Politics, a research group in Washington that monitors the influence of money in politics, Mr. Hayworth was the largest single Congressional recipient of donations from Mr. Abramoff and his family, his associates, his Indian tribe clients and a gambling cruise ship line that he owned, with more than $101,000 going to Mr. Hayworth and his political action committee since 1999. Mr. Hayworth was also a frequent guest in sports skyboxes controlled by Mr. Abramoff and his clients, and at Signatures, a Washington restaurant owned by the lobbyist. Mr. Mitchell said Mr. Hayworth needed to...