A bipartisan pair of senators has introduced a bill aimed at protecting Robert Mueller, the special counsel overseeing the investigation into Russian meddling in the 2016 election, should President Trump decide to fire him.

The bill, introduced Thursday by Sens. Thom Tillis, R-N.C., and Chris Coons, D-Del., would allow a special counsel who is removed to challenge the firing in court. There, a three-judge panel would decide whether the special counsel’s removal was justified. If the judges decide there was no good cause for firing, the person would be reinstated as special counsel over the wishes of the president.