Stephen Bannon

Witcover: The Trump-Bannon explosion

Witcover: The Trump-Bannon explosion

The dramatic breakup between Donald Trump and former White House chief strategist Steve Bannon has blown wide open the political direction of the Trump presidency at a particularly inopportune time.

It comes just as Mr. Trump is frantically seeking to stabilize a presidency besieged by internal chaos and to cope with his own Justice Department's investigation into his campaign's possible collusion with Russian agents meddling in the 2016 election.

The president already has his hands full trying to discredit that probe and by association Special Counsel Robert Mueller, even as Mr. Trump insists he has no intention of firing him. He also has now he has turned against Mr. Bannon,...