AP PHOTO In this Friday photo, President Donald Trump speaks to military mothers in the East Room of the White House during Mother's Day celebration.

WASHINGTON — After four months in office, President Donald Trump has become distrustful of some of his White House staff, heavily reliant on a handful of family members and longtime aides, and furious that the White House’s attempts to quell the firestorm over the FBI and congressional Russia investigations only seem to add more fuel.

Trump’s frustrations came to a head this week with the firing of FBI Director James Comey, who was overseeing the probe into his campaign’s possible ties to Russia’s election meddling. Fearful that his own team would leak the decision, Trump kept key staff in the dark as he pondered the dramatic move.

The communications staff charged with explaining the decision to the American people had an hour’s notice. Chief strategist Steve Bannon learned on television, according to three White House officials, though a person close to Bannon disputed that characterization.

When the White House’s defense of the move failed to meet his ever-changing expectations, Trump tried to take over himself. But he wound up creating new headaches for the White House, including with an apparent threat to Comey.

“James Comey better hope that there are no ‘tapes’ of our conversations before he starts leaking to the press!” Trump wrote on Twitter Friday morning.

For a White House accustomed to bouts of chaos, Trump’s handling of Comey’s firing could have serious and long-lasting implications. Already Trump’s decision appears to have emboldened the Senate intelligence committee investigating into Russia’s election interference and the president’s associates, with lawmakers announcing a subpoena for former national security adviser Michael Flynn. Comey’s allies also quickly made clear they would defend him against attacks from Trump, including disputing the president’s assertion that Comey told Trump he was not personally under investigation.

Several people close to the president say his reliance on a small cadre of advisers as he mulled firing Comey reflects his broader distrust of many of his own staffers. He leans heavily on daughter Ivanka Trump and son-in-law Jared Kushner, as well as Hope Hicks, his trusted campaign spokeswoman and Keith Schiller, his longtime bodyguard. Schiller was among those Trump consulted about Comey and was tapped by the president to deliver a letter informing the director of his firing.

Trump confidants say Bannon has been marginalized on major decisions, including Comey’s firing, after clashing with Kushner. And while Trump praised chief of staff Reince Priebus after the House passed a health care bill last week, associates say the president has continued to raise occasional questions about Priebus’ leadership in the West Wing. Still, Priebus was among the tight circle of staffers Trump consulted about Comey’s firing.

Trump spent most of the week out of sight, a marked change from a typically jam-packed schedule that often includes multiple on-camera events per day. Even when aides moved ahead on an executive order creating a voter fraud commission — a presidential pet project that some advisers thought they had successfully shelved — Trump signed the directive in private.

More than a lack of momentum on major policy goals, Trump is said to be seething over the flood of leaks pouring out of the White House and into news reports. He’s viewed even senior advisers suspiciously, including Bannon and Priebus, when stories about internal White House drama land in the press.

A dozen White House officials and others close to Trump detailed the president’s decision-making and his mood on the condition of anonymity in order to discuss private conversations and deliberations.