The last time President Barack Obama was in the White House was on Jan. 20, 2017, when he left to escort his successor — bent on overturning “Obamacare” — to the U.S. Capitol to be inaugurated.
Obama returns to the White House on Tuesday for a moment he can savor: His signature Affordable Care Act is now part of the fabric of the American health care system, and President Joe Biden is looking to extend its reach. Obamacare sign-ups have increased under Biden's stewardship, and more generous taxpayer subsidies have cut costs for enrollees, albeit temporarily.
