However, he faced a Democratic Congress that did not share his goals and, in some cases, enacted legislation over his veto. Nixon's proposed reform of federal welfare programs did not pass Congress, but Congress did adopt one aspect of his proposal in the form of Supplemental Security Income, which provides aid to low-income individuals who are aged or disabled. They were exposed when the break-in of the Democratic National Committee Headquarters, ended in the arrest of five burglars and gave rise to a congressional investigation. Unlike many of his fellow Cabinet members, Attorney General John N. Mitchell held sway within the White House, and Mitchell led the search for Supreme Court nominees. In foreign affairs, Nixon enhanced the importance of the National Security Council, which was led by National Security Advisor Henry Kissinger. Nixon's first Secretary of State, William P. Rogers, was largely sidelined during his tenure, and in 1973, Kissinger succeeded Rogers as Secretary of State while continuing to serve as National Security Advisor.