Senate Majority Leader Mitch McConnell, R-Ky., planned to confirm dozens of President Trump’s judges by the close of the 115th Congress in December. But the judicial express has hit a major roadblock.

Senate Judiciary Committee Chairman Chuck Grassley, R-Iowa, had to cancel plans to clear a slate of 25 nominees because one panel member, Sen. Jeff Flake, R-Ariz., won’t vote for them without a vote on a bill to protect special counsel Robert Mueller from being fired by Trump.