WASHINGTON (AP) — Attorney General Jeff Sessions, publicly skewered by his boss for stepping aside from 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.

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."

Trump's denouncement reflected deep frustration with one of his staunchest allies, but was not a calculated attempt to force Sessions from the Cabinet, according to two Trump advisers. 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.

The advisers said the president viewed the move as an act of disloyalty — arguably the most grievous offense in the president's mind — and was angry that Sessions did not consult with him ahead of time.

The advisers, who spoke on condition of anonymity because they were not authorized to publicly discuss the president's thinking, said Trump's new public comments largely reflect what they have heard him say privately.

Yet the frustration goes both ways. At the Justice Department, there's displeasure that developments on Trump and Russia routinely drown out work that officials are trying to highlight. Much like Thursday, a May rollout of a sentencing policy shift was overshadowed by Trump's firing of Comey that same week.

At one point, Sessions privately told Trump he was willing to resign his post, but the president did not accept the offer.

And Sessions has given no public hints that he plans to leave, traveling the country for speeches to outline a tough-on-crime approach to violence and immigration. The first U.S. senator to endorse Trump during the presidential run, Sessions bonded with him over shared hard-line immigration views. Some of Sessions' long-serving advisers are now working alongside the president in the West Wing.

A Sessions resignation could throw Mueller's investigation into uncertainty. Trump would nominate a replacement and could seek assurances that his pick would not recuse himself from the investigations.

Trump raised the prospect of firing Mueller in his interview with the Times, suggesting he had damaging information on the former FBI director. The president also said Mueller's selection for the job was a conflict of interest because Trump had spoken with him about returning to the FBI after the firing of Comey.

"There were many other conflicts that I haven't said, but I will at some point," Trump said.

The president has repeatedly told those close to him that he fears there is a movement underway, fueled in part by Comey, Rosenstein and potentially Mueller, to discredit his presidency. He has denied that his campaign had any contacts with Russia during the election, though that assertion has been challenged by his son's acknowledgment that he accepted a meeting that was billed as part of the Russian government's efforts to tar Democrat Hillary Clinton.

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Associated Press writers Julie Pace and Jonathan Lemire contributed to this report.