They base this belief on the aggressive legal hiring being pursued by Mr. Mueller in the areas of money laundering, organized crime, and attorneys with experience in 'flipping' witnesses to testify against their co-defendants.
Some Republicans are again warning the President to prepare the public for the firing of Robert Mueller before he gets closer in his investigations.
Trump allies fret that the White House is ill-prepared for the public showdown with Mueller that will eventually come, and should be making legal, political and constitutional arguments for the president's right to fire Comey. Statements by Trump lawyers tend to rattle, rather than reassure, White House allies.
Some of Mr. Trump's other associates are telling him not to fire Robert Mueller, because doing so would likely completely destroy his presidency.
Trump associates tell me Trump mused about firing Mueller. But now, one associate said, the damage would be as horrendous as "firing the Pope."