It's beginning to look a lot like . . . open enrollment. On December 15, the Affordable Care Act's sign-up period will officially close for coverage that takes effect January 1. The Biden administration has already begun crowing about how many people have signed up. In mid-November, Health and Human Services Secretary Xavier Becerra boasted that 3.4 million people had enrolled between November 1 and 19. "This may be a very good Christmas for a lot