WASHINGTON — Attorney General Jeff Sessions, publicly skewered by his boss for stepping clear of the Russia-Trump investigations, declared Thursday he still loves his job and plans to stay on. Yet Donald Trump’s airing of his long-simmering frustrations with Sessions raised significant new questions about the future of the nation’s top prosecutor.

The White House was quick to insist that the president “has confidence” in Sessions. However, the episode underscored how the attorney general’s crime-fighting agenda is being overshadowed by his fractured relationship with Trump and the continuing investigations into allegations of Russian ties to the Republican candidate’s presidential campaign.

The challenges for Sessions were laid bare Thursday when the attorney general, at a Justice Department news conference to announce the takedown of a mammoth internet drug marketplace, faced zero questions about that case and was instead grilled on his reaction to being excoriated by Trump in a New York Times interview a day earlier. The news conference on the drug case was quickly ended once it was clear reporters would only ask about the interview.

Sessions did not directly address his relationship to Trump except to say he was still carrying out the agenda of the president.

“I have the honor of serving as attorney general. It’s something that goes beyond any thought I would have ever had for myself,” Sessions said. “We love this job, we love this department and I plan to continue to do so as long as that is appropriate.”

Asked how he could effectively serve if he didn’t have Trump’s confidence, he responded, “We’re serving right now. The work we’re doing today is the kind of work we intend to continue.”

Asked at the White House about Trump’s feelings on Sessions, spokeswoman Sarah Huckabee Sanders said, “Clearly, he has confidence in him or he would not be the attorney general.”

It all followed Trump’s statements to the Times that he never would have tapped the former Alabama senator for the job had he known a recusal was coming. Sessions took himself off the Justice Department-led case in March following revelations he’d failed to disclose his own meetings with the Russian ambassador to the U.S. That placed the investigation with his deputy, Rod Rosenstein, who in May appointed former FBI Director Robert Mueller to serve as special counsel.

Several people close to Trump — including his eldest son, Donald Trump Jr, who has also been ensnared in the Russia probe — have told the president that they, too, believe Sessions’ decision to recuse himself was a mistake, according to three White House and outside advisers who spoke on condition of anonymity to discuss private conversations.

In the same Wednesday interview, Trump lashed out at Mueller, Rosenstein, James Comey, the FBI director Trump fired, and acting FBI Director Andrew McCabe, who replaced Comey.

“Jeff Sessions takes the job, gets into the job, recuses himself, which frankly I think is very unfair to the president,” Trump told the newspaper. “How do you take a job and then recuse yourself? If he would have recused himself before the job, I would have said, ‘Thanks, Jeff, but I’m not going to take you.’ It’s extremely unfair — and that’s a mild word — to the president.”

The broadside against Sessions in the interview was not a calculated ploy to force the attorney general to resign but rather Trump’s frustration with his longtime ally bubbling to the surface, the advisers said. For weeks, the president has seethed about Sessions’ decision to recuse himself from the federal investigations into whether Trump’s campaign coordinated with Russia during last year’s election — Probes that have shadowed the administration from the outset.

That others agree Sessions’ recusal was a mistake has only fueled Trump’s frustration with the investigation dogging the White House.