sworn off

That means he would need to cut into the mandatory spending programs of Medicare, Medicaid, and Social Security, and Trump has supposedly sworn off touching Medicare and Social Security.

Mr. Dunn has sworn off help from outside groups as part of his pro-democracy platform.

Thus far they’ve declined to bring it back, but haven’t sworn off the possibility.

Since hitting the trail, he has, as though struck by lightning, become a Medicare for All supporter, become a Green New Deal endorser, and sworn off corporate PAC money.

I’ve sworn off Twitter and its descendants, only to realize that those places are really, really useful for my job.