U.S. Congressman Troy Nehls and his wife are in isolation after testing positive for the coronavirus. The Richmond Republican, who is the former sheriff of Fort Bend County, announced by social media on Saturday that he'd contracted the virus and was showing symptoms. On Sunday, Nehls posted on Facebook that he and his wife had received the Regeneron monoclonal antibody treatment at a Sugar Land hospital. Gov. Greg Abbott got the same treatment after testing positive earlier in the week. Abbott has since tested negative.