scrutiny by the courts. Telecommunications companies In 2007, Rockefeller began steering the Senate Intelligence Committee to grant retroactive immunity to telecommunications companies who were accused of unlawfully assisting the National Security Agency (NSA) in monitoring the communications of American citizens. This was an about-face of sorts for Senator Rockefeller, who had hand-written a letter to Vice President Dick Cheney in 2003 expressing his concerns about the legality of NSA's warrantless wire-tapping program. Some have attributed this change of heart to the spike in contributions from telecommunications companies to the senator just as these companies began lobbying Congress to protect them from lawsuits regarding their cooperation with the National Security Agency. Between 2001 and the start of this lobbying effort, AT&T employees had contributed only $300 to the senator. After the lobbying effort began, AT&T employees and executives donated $19,350 in three months. The senator has pledged not to rely on his vast fortune to fund his campaigns, and the AT&T contributions represent about 2% of the money he raised during the previous year. Torture Although publicly deploring torture, Rockefeller was one of two Congressional Democrats briefed on waterboarding and other secret CIA practices in the early years of the Bush Administration, as well as the existence of taped evidence of such interrogations (later destroyed). In December 2007, Rockefeller opposed a special counsel or commission inquiry into the destruction of the tapes, stating "it is the job of the intelligence committees to do that." On September 28, 2006, Rockefeller voted with a largely Republican majority to suspend habeas corpus provisions for anyone deemed by the Executive Branch an "unlawful combatant," barring them from challenging their detentions in court. Rockefeller's vote gave a retroactive, nine-year immunity to U.S. officials who authorized, ordered, or committed acts of torture and abuse, permitting the use of statements obtained through torture to be used in military tribunals so long as the abuse took place by December 30, 2005. Rockefeller's vote authorized the President to establish permissible interrogation techniques and to "interpret the meaning and application" of international Geneva Convention standards, so long as the coercion fell short of "serious" bodily or psychological injury. The bill became law on October 17, 2006. 2008 presidential election On February 29, 2008, he endorsed Barack Obama for president of the United States, citing Obama's judgment on the Iraq war and national security issues, and calling him the right candidate to