Sen. Ted Kennedy, wintering in an undisclosed location in Florida, may never return to the Senate, friends say, as his battle with brain cancer enters its final rounds. “He’s someplace sunny, near the water, where he can rest and sail,” said a pal of the senior senator. “Time is of the essence. It’s very sad.” Kennedy was rushed to the hospital after he collapsed during a luncheon that followed President Obama’s inauguration, and returned to vote on the stimulus bill. Although family members have said publicly that the senator is doing “good,” privately those close to Kennedy say he may...