POPLAR BLUFF, Mo. (Reuters) - President Bush offered an unexpected reason on Monday for cracking down on frivolous medical lawsuits: "Too many OB-GYNs aren't able to practice their love with women all across this country."

The Republican president, long known for verbal and grammatical lapses, included the anecdote about obstetrician gynecologists in his stump speech attacking Democratic presidential rival Sen. John Kerry and his running mate, Sen. John Edwards, a former trial lawyer.

At a rally of cheering supporters in Poplar Bluff, Missouri, Bush made his usual pitch for limiting "frivolous lawsuits" that he said drive up the cost of health care and run doctors out of business.

But then he added, "We've got an issue in America. Too many good docs are getting out of business. Too many OB-GYNs aren't able to practice their love with women all across this country."

Unfazed, Bush went on to deride his rivals as "pro-trial lawyer," and concluded, "I think you've got to make a choice. My opponent made his choice, and he put him on the ticket. I made my choice. I'm for medical liability reform now."

Commentary:Some say he's an idiot, others say he's sick. Whichever it is, he's not fit to be president.