Sexual allegations deepen Former intern will tell all for immunity WASHINGTON (AP) - Anxious to cut a deal for immuni ty, the lawyer for Monica Lewinsky said Sunday his 24-year old client “will tell all that she knows” to Whitewater prosecu tors. “The chips will fall as they may,” he said. Attorney William Ginsburg said he has told investigators what Lewinsky will tell them in exchange for immunity from prosecution. “I will remain in Washington as long as it takes to see that the truth in every detail, wherever it may fall, comes out,” Ginsburg said. Negotiations of such a sensitive nature could take weeks. President Clinton talked this weekend with heavyweight advisers brought back to Washington to help him through the crisis brought on by the allegations of a sexual relationship with Lewinsky and attempts at a cover-up. One of them, one time Commerce Secretary Mickey Kantor, said his help was legal in nature. “I have my legal hat on, not my political hat,” he said. In the first hint of an eyewitness, ABC reported that the president and Lewinsky were caught in an intimate encounter in a private area of the White House in the spring of 1996, shortly before the White House intern was moved to a job at the Pentagon. ABC cited several unidentified sources for its infor mation. The office of prosecutor Kenneth Starr declined comment on the ABC report. If true, such a witness would provide important corroborating evidence for Lewinsky’s account if she reverses her current denial of an affair with the president. In secretly recorded conversations, Lewinsky had said she believed “nobody saw anything happen between us.” Ginsburg said the ABC report, if true, will take some of the v pressure offhis dient by making her .testimony less important, i Such a development would let Sta?r expend his “bullets, on L Jn-a«wiurlwin