LONDON (AP) — Prime Minister Johnson has brought in new senior staffers as he tries to restore his flagging authority — including a communications chief who insisted the British prime minister is “not a total clown.”

The prime minister hired Guto Harri, an aide from his days as London mayor who has recently been critical of Mr. Johnson, to try to regain control of the government’s messaging after weeks of turmoil that have led some in the ruling Conservatives to call for his removal. He also appointed a senior Cabinet minister, Steven Barclay, as his new chief of staff.

But unease about Johnson’s leadership grew Monday when opposition Labour Party leader Keir Starmer was harassed outside Parliament by anti-lockdown protesters who accused him of protecting pedophiles when he was a prosecutor — echoing a slur made by Johnson last week.

Visiting a hospital cancer center Monday outside London, Mr. Johnson said he was “focused completely” on clearing a backlog of millions of medical procedures built up during the pandemic. It’s one of a pile of critical issues, including a squeeze on household finances from inflation and a looming tax hike, that are being overshadowed by scandal over lockdown-breaching government parties.

“I think what people want is for the government to focus, not on stuff going on at (the government district of) Westminster, but to focus on life … beyond Westminster, and to focus on the needs of the country,”Mr.  Johnson said. “And that is what we’re doing.”

Mr. Johnson’s grip on power has been shaken by public anger over disclosures that his staff held “bring your own booze” office parties, birthday celebrations and “wine time Fridays” in 2020 and 2021 while millions in Britain were barred from meeting with friends and family because of his government’s COVID-19 restrictions.

A total of 16 parties have been investigated by a senior civil servant, Susan Gray, with a dozen of them also under investigation by the Metropolitan Police.

In an interim report last week into the four parties not under criminal investigation, Ms. Gray found that “failures of leadership and judgment” enabled events to occur that “should not have been allowed to take place” and described a Downing Street operation marked by excessive drinking and dysfunctional dynamics.

Mr. Johnson apologized — without admitting personal wrongdoing — and pledged to fix the problems in his office.

But on Friday he was rocked by the departure of five senior staff, including his chief of staff, his communications director and his policy director, Munira Mirza. A loyal longtime aide, Ms. Mirza stood by the prime minister amid the “partygate” disclosures. 

Yet she said the final straw was Mr. Johnson’s “scurrilous accusation” that Mr. Starmer had failed to prosecute the late pedophile Jimmy Savile for sexual abuse when Mr. Starmer was the U.K.’s director of public prosecutions.

On Monday, Mr. Starmer was surrounded outside Parliament by protesters against coronavirus restrictions. They could be heard yelling “Traitor!”, mentioning Savile and throwing accusations of “protecting pedophiles.” Mr. Starmer was driven away in a police car. Police said two people were arrested.

Mr. Johnson called the harassment “absolutely disgraceful,” but some said he should take responsibility. Julian Smith, a former minister in Johnson’s government, tweeted that “the false Savile slurs” must be “withdrawn in full.”

Mr. Johnson responded to recent weeks’ turmoil with a Downing Street shakeup that included the eye-catching appointment of Mr. Harri, a former BBC journalist who worked for Mr. Johnson at City Hall from 2008 to 2012 but has more recently criticized him. 

In 2018, Mr. Harri called Mr. Johnson “sexually incontinent,” and in 2020 he said government communications during the pandemic had been “a masterclass in incompetence.” Last month Mr. Harri said reports of parties in Downing Street while Britain was in lockdown were “unforgivable,” though also “understandable in some ways.”

Mr. Harri told a Welsh-language news site that Johnson greeted him on his first day by singing Gloria Gaynor’s disco anthem “I Will Survive.”

Mr. Harri, who is Welsh, told the Golwg360 site that Mr. Johnson was “not a total clown,” but in fact “a very likable character.”

He said the prime minister is “not the devilish man as some wrongly portray him to be.”

The staff moves are intended to reassure Conservative lawmakers who are debating whether to seek a no-confidence vote in the leader who won them a big parliamentary majority just over two years ago.

Under party rules, a no-confidence vote is triggered if 15 percent of party lawmakers — currently 54 people — write letters calling for one. If Mr. Johnson lost such a vote, he would be replaced as party leader and prime minister.

Only 15 of the 360 Conservative legislators have publicly called for Mr. Johnson to quit, though the number who have written letters is likely higher.

Conservative lawmaker Tom Tugendhat, who has already said he will run for leader if Johnson is ousted, said the prime minister’s fate depended on “how the reset goes.”

He said “there’s an awful lot of talent going in,” but also “an awful lot of talent coming out.”