The Supreme Court could strike down Obamacare. Here’s what’s at stake.

In this Jan. 22 file photo from Washington, D.C., Louisiana Attorney General Jeff Landry (at the microphone) joins Indiana Attorney General Curtis Hill (l) and South Carolina Attorney General Alan Wilson at a press conference to discuss the impeachment trial at the U.S. Capitol. Landry has endorsed a lawsuit to end the Affordable Care Act.(Photo by Drew Angerer/Getty Images)