WASHINGTON - President Joe Biden and members of his inner circle have reassured allies in recent days that he plans to run for reelection in 2024, as they take steps to deflect concern about the 79-year-old president's commitment to another campaign and growing Democratic fears of a coming Republican return to power.

The efforts come as the broader Democratic community has become increasingly anxious after a bruising six-month stretch that has seen Biden's national approval rating plummet more than a dozen points, into the low 40s, amid growing concerns about inflation, Democratic infighting in Washington and faltering public health efforts to move beyond the covid-19 pandemic.

The message is aimed in part at tamping down the assumption among many Democrats that Biden may not seek reelection given his age and waning popularity, while also effectively freezing the field for Vice President Kamala Harris and other potential presidential hopefuls.

"The only thing I've heard him say is he's planning on running again," said former senator Chris Dodd, D-Conn., a Biden friend. "And I'm glad he is."

At a virtual fundraiser this month, Biden told a small group of donors that he plans to seek a second term, underscoring the message he gave the nation in March at his first White House news conference before cautioning that he had "never been able to plan three-and-a-half, four years ahead, for certain."

"What he is saying publicly is what he firmly believes. There's no difference," said former Pennsylvania Gov. Ed Rendell, who attended the fundraising event. "He will not run if he feels he can't do the job physically or emotionally."

But interviews with 28 Democratic strategists and officials, many of whom requested anonymity to speak more frankly, show that the assurances have not stopped the internal debate over whether Biden will appear on the ticket.

Some Democrats take a skeptical view of any public and private signals Biden and his team send about reelection, reasoning that there is an incentive for them to project interest in a second term, regardless of his true intent, to avoid weakening his standing. Another presidential bid, others worry, will involve a much more rigorous schedule than the relatively calm 2020 campaign, which was largely conducted remotely because of the covid-19 pandemic.

Even among those in close touch with Biden's innermost circle, interpretations about his intentions vary. One Democrat involved in campaigns said they couldn't think of a single person they had spoken to in the last month who considers the possibility of Biden running again to be a real one.

"I hear this question get asked every day," said another Democratic veteran of recent presidential campaigns, about whether Biden will run for reelection. "No one ever asked that question about Barack Obama. No one ever asked that question about Donald Trump."

Florida trial lawyer John Morgan, who was a top 2020 Biden donor, said he was unsure whether Biden would seek reelection.

"What is his health going to be in the next three years?" he wondered aloud. "All you have to do is look at the mortality tables in America to understand what I'm saying."

Biden received a health checkup Friday - a day before his 79th birthday Saturday - at Walter Reed National Military Medical Center that found the president to be "healthy," "vigorous" and working out five days a week. His doctor described a stiffer walking gait in recent years, which he attributed to spinal arthritis, and some acid reflux that has caused him to repeatedly clear his throat.

His advisers say that health is not a current concern that would prevent another campaign.

"He has told people privately that he plans to run and we will be ready for that," said one Biden adviser, who requested anonymity to describe internal conversations.

Biden has so far rejected then-president Donald Trump's approach of declaring a reelection campaign in the first months in office, reasoning that such an announcement would waste money and wear out campaign donors, allies say. Biden is widely expected to wait until after the midterms to make a formal announcement.

Shortly after arriving in the White House, Biden shifted the assets of his presidential campaign to the Democratic National Committee, leaving his donor and volunteer lists to be managed by the national party. Since then, DNC leaders have been operating under the assumption that he will run again, choosing not to begin any planning for a contested primary, like debate preparations, which had started at this point in the 2020 cycle.

The party does plan to review the order of nominating states in the primary calendar, a threat to the first-in-the-nation position of the Iowa caucuses, but those efforts do not assume a contested Democratic fight.

Should Biden run and face a primary challenge in 2024, Democratic officials plan to side firmly with the incumbent, potentially frustrating his challenger's access to party data and resources, according to people familiar with the plans.

In the meantime, the DNC has been working with Biden's former campaign manager and White House deputy chief of staff Jen O'Malley Dillon to draft plans for major investments over the next year in important midterm election states that they believe will be battlegrounds for Biden in 2024.

The top priority states - Wisconsin, Michigan, Pennsylvania, New Hampshire, Arizona, Georgia, North Carolina and Nevada - will all be staffed statewide with DNC funds, according to a person familiar with the plans, in the hopes of creating continuity into the presidential contest. All but two of the states have both a contested U.S. Senate race and a contested gubernatorial election next year. Michigan only has a gubernatorial race and North Carolina only has a Senate race.

Unite the Country, a super PAC formed by Biden loyalists, has also announced plans to invest in the midterms to prepare the ground for Biden's return to the campaign trail. The focus of their midterm spending, which has a fundraising goal of $42.4 million, will be on five states - Pennsylvania, Michigan, Arizona, Georgia and Wisconsin.

"I wake up every day operating like he is running," the group's CEO Steve Schale said. "He is running until he is not."

Another group founded to support Biden's priorities, Building Back Together, has been spending millions of dollars on television and digital ads to support the Biden agenda, and it has been holding regular meetings with Democratic groups in an effort to hold together the coalition that elected Biden. But there has not yet been any decision made about whether the group will spend money on a Biden reelection, according to people involved.

In recent weeks, Anita Dunn, who left the White House in August after a short stint as a senior adviser, has made calls to Democratic Party leaders and activists, assuring them Biden will run for reelection, according to people familiar with the calls.

From her perch at SKDK, a consulting firm she helps run, Dunn still serves as one of Biden's most trusted and influential political advisers and is deeply involved in plotting out Biden's political future. If Biden decides to run, Dunn is likely to be a key part of his team with O'Malley Dillon, allies say. Steve Ricchetti and Mike Donilon, two of Biden's top White House advisers, are also expected to be deeply involved in campaign strategy and messaging, they say.

Growing concerns about Democratic chances in next year's midterm elections are widespread, after an electoral defeat in the Virigina governor's race and an unexpectedly close race in New Jersey. But that concern less frequently extends to 2024, as party leaders point to the experiences of the last two Democratic presidents, Bill Clinton and Barack Obama, who faced midterm wipeouts before easily winning reelection.

If Biden doesn't run, some fear an open and potentially bruising primary campaign with no clear front-runner. Harris, seen at the start of the administration as a potential heir apparent, has stumbled in the eyes of many Democrats, opening the door to conversations in the party about the prospect of others leading the ticket if Biden steps aside. Transportation Secretary Pete Buttigieg is seen by some Democrats as another potential candidate from inside the administration.

Former Virginia Gov. Terry McAuliffe spoke during his gubernatorial campaign about possibly running in 2024 if Biden steps aside, according to multiple people familiar with the conversations, but his defeat in this month's election casts that plan into doubt. The names some liberals have floated as possible candidates if Biden steps down include Sens. Elizabeth Warren, D-Mass., Sherrod Brown, D-Ohio, and Jeff Merkley, D-Ore. Others have pointed to Rep. Alexandria Ocasio-Cortez, D-N.Y., who is seen as the future of the liberal movement. In 2025, she would barely meet the constitutional requirement that presidents be at least 35 years old.

But there is little sign at the moment of much appetite for a liberal challenge to Biden if he mounts another campaign. The president has won plaudits from liberal lawmakers this year for pursuing an ambitious domestic agenda.

"President Biden will enjoy strong support from many progressives when he runs for reelection. He will certainly have mine," said Rep. Ro Khanna, D-Calif., who co-chaired the campaign of Sen. Bernie Sanders, I-Vt., in 2020.

When it comes to the prospect of Biden drawing a liberal challenger, one Democratic congressional aide with knowledge of party dynamics wondered aloud who would want to spend their political capital taking on an incumbent and weakening him, like Sen. Ted Kennedy, D-Mass., did to President Jimmy Carter in 1980. While such a move might be destructive, the aide said, some might be prepared to play that role.

"If this was a decision being made now, personally I would say that there's plenty of work people can do without challenging the president," said Larry Cohen, a close Sanders ally who chairs the board of a group aligned with the senator.

"If he's not running, I think absolutely there'll be progressives - at least one," he added, without predicting who might run in an open race.

The threat of a return of Trump to the White House has also divided Democrats. Biden ran for election to "restore the soul" of the country, but nearly a year into his term it is clear that the political threats he identified in the country, including Trump's brand of politics, have not faded from the scene.

Trump, 75, has taken to hinting strongly that he intends another campaign, which has strengthened the rationale for some Democrats of having Biden back on the top of the ticket. Democrats expect Trump's involvement in the Jan. 6 capitol riots, and his continued false denials of the 2020 election result, to be a drag on his campaign in 2024.

Barry Goodman, a Democratic donor who served on Biden's national finance committee for his 2020 presidential campaign, said many donors are "praying that Trump runs."

"I think no matter who runs, a Democrat beats him," he said of Trump. "At the end of the day, people are not going to put that despot in office one more time."