But the gap isn’t large—43 percent see it favorably versus 42 percent unfavorably—and it falls within the survey’s margin of sampling error.

Opinion still is sharply divided by party, with 70 percents of Democrats viewing the law favorably and 75 percent of Republicans viewing it unfavorably. Independents fall in the middle; 42 percent like it and 46 percent don’t.

Last month, 43 percent of Americans viewed the law unfavorably and 41 percent favorably. In April of last year, the gap was larger; 46 percent viewed Obamacare unfavorably, 38 percent favorably.