WASHINGTON — The administration of President Barack Obama has launched what officials termed a psychological warfare campaign meant to topple Israeli Prime Minister Benjamin Netanyahu. Sources in the administration and Congress asserted that the White House and State Department have sought to destabilize Netanyahu's government by forcing him to agree to an indefinite freeze on Jewish construction in the West Bank and most of Jerusalem as well as the establishment of a Palestinian state by 2012. They said the campaign sought to replace Netanyahu with opposition leader and former foreign minister Tsipi Livni.