"House Republicans introduced their health care bill, the American Health Care Act, only two weeks ago. During that relatively short interval, President Trump’s approval ratings — which were never very good — have become a little worse.

Is that just a coincidence? Could health care be Trump’s undoing when so many things haven’t been? Let’s ask a few more questions about Trump’s popularity and the GOP’s health care plan. The health care bill probably has had a drag on Trump’s numbers, but it isn’t an open-and-shut case."