Steve Bannon’s White House departure Friday was largely predictable — but not so its impact on Donald Trump’s presidency.

At the least, it may help stem some of the White House infighting that has frequently undercut the president’s agenda.

Bannon’s removal became all but certain when he gave an interview to The American Prospect mocking Trump’s “fire and fury” threat against North Korea. Such insubordination clearly made his continued presence as chief strategist untenable.

Nor did it help that he also bad-mouthed other Trump aides, picked fights and ridiculed those he opposed. Or that he was seen as the mastermind of a stealth media campaign to paint National Security Adviser H.R. McMaster as disloyal and anti-Israel.

Say this for Bannon, though: He played a key role in getting Trump elected by channeling voter anger over the economy — as no other candidates did. Trump saw it differently, of course, and may have even resented Bannon for getting too much credit. “I won all the primaries,” Trump said. “Mr. Bannon came on very much later than that.”

In any event, Bannon’s record at the White House was less stellar. He headed a clique of hard-right nationalists who believed they alone represented the real Trump agenda, and he was deeply linked to much of the internal White House turmoil.

Question is: What happens to Trump? Bannon says the president will become more moderate, but the now-ex-strategist will fight on from his old perch at Breitbart.

“The Trump presidency that we fought for,” he insists, “is over.” But he won’t fade away. “I feel jacked up,” says Bannon. He vows to “crush the opposition.”

Trump, for his part, can use Bannon’s exit to refocus. Things have been just too rocky.