Last-minute Obamacare enrollments dropped significantly this year compared to last year, as the debate over Republican vows to repeal and replace the law heats up.

A total of more than 9.2 million people selected health plans on the federal healthcare.gov website during its fourth annual enrollment season, the administration announced Friday. But just around 400,000 people signed up in the last two weeks, compared to nearly 700,000 signups in the final week of enrollment last year.