Trumpcare The impetus for the lawsuit was the elimination last year of the individual mandate penalty as part of the Trump administration’s tax reform overhaul. (Photo: Shutterstock)

Arguments begin this week in what some consider a defining life-or-death moment for Obamacare. Kicked off on Wednesday, the Texas v. U.S. lawsuit—which the Department of Justice has notably stated it won’t defend—seeks to declare the ACA unconstitutional and strike it down once and for all.

Or what’s left of it, anyway. The impetus for the lawsuit was the elimination last year of the individual mandate penalty as part of the Trump administration’s tax reform overhaul. The move was just one of many taken over the past year (following Republicans’ failure to outright repeal Obamacare) to weaken the protections of the ACA, moves that some have decried as intentional sabotage.

Take a look at the key developments and changes to the landmark health care law over the past year.