16 states so far have filled an lawsuit on the emergency declaration.

[Codemaster85]

https://www.cnn.com/2019/02/18/politics/xavier-becerra-lawsuit-national-emergency/index.html

"We're going to try to halt the President from violating the Constitution, the separation of powers, from stealing money from Americans and states that has been allocated by Congress, lawfully," Becerra told CNN's Kate Bolduan Monday.

The attorneys general from Colorado, Connecticut, Delaware, Hawaii, Illinois, Maine, Maryland, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, Oregon and Virginia joined California in the lawsuit.

[Grenadiac]

Can't believe Texas hasn't filed yet. Our AG is a bootlicking cocksucker but even he should have enough spine to say no to theft of land, considering his platform was anti eminent domain.

[Zonesylvania]

the illegals would've stolen it anyway, this way the government can build walls to keep them out

[Kartoffel]

skin = brown? land steal bad
wall to keep brown out? land not stolen, land "appropriated" for gud cause

[JennyC6]

I wonder if they are doing it as a class action or as seperate suits. Be funny if they all filed seperate suits just to ensure jt took as long as possible to get through them and thus prevent the wall.

[elix]

The wording in the quoted paragraph in the op strongly implies it is one suit with all the states together, filed with the 9th Circuit which Trump hates for consistently ruling against his stupid dictatorial ass.

But there are also lawsuits happening on other jurisdictional levels. This is only one part of the fight.