He passed welfare reform and the State Children's Health Insurance Program, as well as financial deregulation measures. During the last three years of Clinton's presidency, the Congressional Budget Office reported a budget surplus—the first such surplus since 1969. In foreign policy, Clinton ordered U.S. military intervention in the Bosnian and Kosovo wars, signed the Iraq Liberation Act in opposition to Saddam Hussein, participated in the 2000 Camp David Summit to advance the Israeli–Palestinian peace process, and assisted the Northern Ireland peace process. In 1998, Clinton was impeached by the House of Representatives, becoming the second U.S. president to be impeached, after Andrew Johnson. The family moved to Hot Springs in 1950.Although he immediately assumed use of his stepfather's surname, it was not until Clinton turned 15 that he formally adopted the surname Clinton as a gesture toward him.