Sen. Josh Hawley (R-MO) is picking a very public fight with Speaker Mike Johnson (R-LA) over a bill to compensate radiation victims in his home state of Missouri.

The freshman senator, a loud critic of Senate Minority Leader Mitch McConnell (R-KY), is not known for holding his tongue when it comes to leadership. But he’s been unusually vocal about expanding the Radiation Exposure Compensation Act, opposed by Republicans due to its large price tag.