U.S Senator Edward Kennedy (D-MA) (L) leaves Massachusetts General Hospital with his son U.S. Congressman Patrick Kennedy (D-RI) (2nd R) and his wife Victoria (far R) in Boston, Massachusetts May 21, 2008. Massachusetts Sen. Edward Kennedy, an elder statesman of U.S. liberal politics and brother of slain President John F. Kennedy, was released from a Boston hospital on Wednesday morning after being diagnosed with a malignant brain tumor. REUTERS/Brian Snyder (UNITED STATES)