Massachusetts Sen. Edward Kennedy (D), who was diagnosed with a malignant brain tumor in May, will not return to the Senate until January, according to his spokeswoman, Melissa Wagoner. “As Senator Kennedy said two weeks ago in Denver, he intends to be on the floor of the United States Senate next January when we begin to write the next great chapter of American progress,” Wagoner said in an e-mail statement, adding: “Senator Kennedy’s doctors are pleased with his progress so far and have recommended that he continue to work from home through the fall.” Kennedy, who was elected to the Senate in 1962, suffered a seizure at his family compound in Hyannis Port in May; on June 2 he underwent brain surgery at Duke University Hospital. He had been expected to return to the Senate this month. The 76-year-old liberal icon made a dramatic appearance during the first day of the Democratic National Convention, where in a brief speech he pledged to see Sen. Barack Obama (D-Ill.) in the White House and that he would return to the Senate floor.