By JONATHAN LEMIRE, Associated Press
WASHINGTON (AP) — President Donald Trump started his weekend in Florida in a fit of anger over his young administration getting sidetracked just days after his most successful moment in office. He returned to the White House late Sunday derailed — again.

Trump's frustration appeared to be both the symptom and the cause of his recent woes. Angry about leaks, errant messaging and his attorney general landing in hot water, he fired off a series of tweets that only ensured more distractions.

His staff had hoped to build on the momentum generated by his speech to Congress by rolling out his revamped travel ban and, potentially, unveiling his health care plan. Those efforts rapidly unraveled, sparking more staff infighting and enraging a president loathe to publicly admit a mistake and eager to shift the blame onto others.

And now, as Trump begins one of the most pivotal weeks yet for his presidency, his staff is facing the fallout from another allegation of close ties to Russia and the president's unsubstantiated claims that his predecessor ordered him wiretapped during the campaign.

Trump simmered all weekend in Florida before returning to Washington ahead of signing new immigration restrictions, according to associates who spoke to the president and, like others interviewed, requested anonymity to discuss private conversations. Those close to Trump said it was the angriest he's been as president, his rage bursting to the surface at his senior staff Friday afternoon in the Oval Office.

Trump was furious about the negative impact of the flap over Attorney General Jeff Sessions' meetings with the Russian ambassador to the U.S. He told one person he personally felt let down that his senior staff were unable to fight back against the story. He also suggested he felt that Sessions' move to recuse himself from any investigation into administration links to Russia felt like an admission of defeat, said the person who spoke to the president over the weekend but declined to be named discussing private conversations.

Sessions' decision particularly infuriated a president who promised repeatedly during the campaign that he'd "win so much the American people would be tired of winning" and he felt that it was a sign of weakness, the person said.

White House chief of staff Reince Preibus, scheduled to travel with Trump to his coastal Palm Beach estate, was told to stay behind. White House chief strategist Steve Bannon also remained in Washington but later flew to Mar-a-Lago.

Those close to Trump have said he has had his happiest days as president at Mar-a-Lago. He didn't cool off there this weekend.

Many West Wing staffers who stayed behind in Washington awoke Saturday morning to the chiming of their cell phones. The president was tweeting just after dawn to hurl the extraordinary accusation that President Barack Obama had ordered Trump Tower to be wiretapped, a charge for which Trump provided no evidence.

Trump had stayed disciplined on Twitter for days surrounding his congressional speech, but no more. Staffers planning to spend the weekend preparing for the president's new executive orders were instead sent scrambling to deal with the incendiary tweetstorm, their carefully laid plans again wrecked 140 characters at a time.

White House press secretary Sean Spicer, an honored guest at Saturday night's annual white-tie Gridiron Dinner, a night of witticisms delivered by reporters and politicos alike, spent most of the night with his head buried in his phone, missing many of the jokes, several at his expense. Sessions had been slated to attend the event but canceled after the revelations about his meetings with Russian Ambassador Sergey Kislyak.

The first travel ban, which was hastily written with little outside consultation, was struck down by a federal court. Weeks of planning and delays have gone into the second order, one that is also sure to face legal challenges and, were it to suffer a second legal defeat, could have a devastating political impact.

Some Trump allies have been frustrated by his conspiracy-mongering about the inauguration crowd size and claims of widespread voter fraud, believing those accusations had become distractions to their agenda. Afraid to upset the mercurial president, they scrambled to fulfill his request to probe the alleged wiretapping.

On Sunday, the White House asked Republicans in Congress to search for evidence. Obama's intelligence chief would soon say no such action was ever carried out, and a U.S. official would confirm that the FBI had asked the Justice Department to dispute the allegation.

"I think the bigger thing is, let's find out. Let's have an investigation," said White House spokeswoman Sarah Sanders on ABC. "If they're going to investigate Russia ties, let's include this as part of it. And so that's what we're asking."

Other Republicans seemed baffled by the charges, which could prove a distraction in the week ahead.

"The president put that out there, and now the White House will have to answer as to exactly what he was referring to," said Florida Sen. Marco Rubio on CNN.

But Trump told friends that he was certain he'd be vindicated.

"I spoke with the president twice yesterday about the wiretap story. I haven't seen him this pissed off in a long time," wrote Christopher Ruddy, a longtime Trump friend and head of NewsMax. "When I mentioned Obama 'denials' about the wiretaps, he shot back: 'This will be investigated, it will all come out. I will be proven right.'"

The president, accustomed to a culture of corporate loyalty enforced by iron-clad nondisclosure agreements, also continued to rage about the leaks that have plagued his White House. He blames the leaks, rather than any of his own decisions, for his administration's shaky start and is threatening to make changes if they continue, according to one person who spoke to him. That could include making the administration's public case for policies, as he did in a lengthy news conference and his congressional speech, both performances praised by his backers.

Trump has been particularly incensed over the leaks about Russia ties, which have dogged him since his election. During the transition he ripped the intelligence community for being behind the leaks and even compared them to Nazi propaganda. Lately, he has blamed Democrats, suggesting that they were using them as an excuse for Hillary Clinton's defeat.
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AP White House Correspondent Julie Pace contributed reporting.
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Follow Lemire on Twitter at http://twitter.com/@JonLemire