A coalition of Twenty state are suing the Federal Government to end the mandate to get coverage under the Affordable Care Act (ObamaCare). The mandate was repealed effective in 2019 under the GOP tax law. This conservative led coalition seeks to end the mandate early so people don’t get fined for not having healthcare in 2018.
In general there was some confusion, since many in the GOP and Trump declared ObamaCare repealed, but in reality it was not repealed and even the mandate doesn’t end until 2019.
NOTE: Although the suit on paper simply seeks to end the mandate early, the side effect of the suit is that it could make many of the ACA’s provisions illegal. One such provision being the pre-existing conditions protections.