Main articles: Watergate scandal and Impeachment process against Richard Nixon. Nixon may not have known about the Watergate break-in beforehand, but he became involved in a cover-up. Nixon and Haldeman pressured the FBI to end its investigation of Watergate, and White House Counsel John Dean promised the Watergate burglars money and executive clemency if they did not implicate the White House in the break-in. The Watergate burglars were convicted in January 1973 without implicating the White House, but members of Congress organized an investigation into Nixon's role in Watergate. As Congressman Tip O'Neill stated, in the 1972 campaign Nixon and his allies 'did too many things. Too many people know about it. There is no way to keep it quiet. The time is going to come when impeachment is going to hit this Congress.' Though Nixon would continue to be active in foreign affairs during his second term, the fallout from the Watergate scandal effectively precluded any major domestic initiatives.