Political pressure might become so intense that President Obama would agree to repeal major portions of the healthcare bill he signed into law recently, Sen. John McCain (R-Ariz.) said today.

Even if Republicans win Congress in 2010, Obama could veto any legislation repealing healthcare reform. But McCain suggested the public might feel so strongly that Obama would cave.

"If the intensity level is as high as it is, I can draw you a scenario where the president would be forced to repeal or really replace it with the provisions [Republicans] wanted," McCain said in an interview with KFYI 550.

At the very least, Republicans could refuse to fund healthcare, the Arizona Republican added.

"You could basically repeal major provisions of it" by refusing to fund them, McCain said.