concern

"Obviously, we are very concerned, and there is a lot of investigative work to be done to see what has happened."

Mr Aaron - who has worked in the tech industry for years - previously told BBC Verify he developed the app out of concern over a spike in immigration raids.

Elizabeth, a Greenville resident who asked to go by her middle name out of concern for her job, told Salon that the politicians pushing this legislation risk alienating young female voters.

But the coalition of environmental groups raised concerns that federal and state officials are flouting the normal procedures required when making new water rules.

In the run-up to the final vote, the bill’s sponsors also attempted to address the concerns of lawmakers who represent smaller cities.