President Trump stepped up his attacks against Robert S. Mueller III on Sunday even as some Republican allies cautioned the president against any move to fire the special counsel, who is carrying out a broad investigation arising from Russian interference in the U.S. presidential election.
Tensions over the Mueller probe gained intensity from the firing late Friday night of Andrew McCabe, the former deputy director of the FBI. Atty. Gen. Jeff Sessions fired McCabe just hours before he would have qualified for the full government pension given to law enforcement officers.
Trump, who had targeted McCabe, publicly cheered his removal.
McCabe is expected to be a...