Doctors are divided over whether to keep the individual mandate that compels Americans to purchase health insurance. That’s according to a study in the New England Journal of Medicine.

Focusing on primary care physicians, the poll found that only 15.1 percent wanted to repeal Obamacare in its entirety—including 32.4 percent of Republican doctors and 37.9 percent of those who voted for Trump. But only 49.5 percent of all respondents favored the tax penalty for people who chose not to purchase insurance.