Many Senate Republicans, even those who have jousted with McCain in the past, say their reassessment is underway. Sensing the increasing likelihood that he will be the nominee, GOP senators who have publicly fought with him are emphasizing his war-hero background and playing down past confrontations.
"I forgive him for whatever disagreements he has had with me. We can disagree on things, but I have great admiration for him," said Sen. Ted Stevens (R-Alaska), a senior member of the Appropriations Committee who has often argued with McCain over government spending.
But others have outright rejected the idea of a McCain nomination and presidency, warning that his tirades suggest a temperament unfit for the Oval Office.
"The thought of his being president sends a cold chill down my spine," Sen. Thad Cochran (R-Miss.), also a senior member of the Appropriations panel, told the Boston Globe recently. "He is erratic. He is hotheaded. He loses his temper and he worries me."