WASHINGTON — President-elect Donald Trump emerged from a marathon 100-minute huddle with Senate Republicans touting what he called a “very strong” discussion of how to implement his agenda — after he paid his respects to the late Jimmy Carter feet away at the Capitol.

“It was a really good meeting, very strong,” said Trump, 78.

“We’ll get something done. One bill, two bills, doesn’t matter to me. They’re going to work that out. But the end result will be the same.”

Wednesday’s visit marks the first time Trump has set foot in the US Capitol since he departed the White House in 2021, though he went back to Washington, DC, for a visit with President Biden on Nov. 13 and for a meeting with Republicans this past June.

“It feels great. It couldn’t feel better,” a beaming Trump, joined by his wife Melania, told reporters about his return to the legislative complex. “We’re going to get the results, and we’re going to make America great again.”

The first couple then proceeded to the Capitol Rotunda, pausing solemnly for about a minute in front of the 39th president’s casket.

Carter — whom Trump fiercely admonished in the past but recently praised for having done “everything in his power to improve the lives of all Americans” — died on Dec. 29. He was 100 years old.

Senate Republicans on Wednesday erupted in applause as the once and future commander in chief joined them to begin deliberations about his second administration’s agenda.

Trump has telegraphed that his preference is for congressional Republicans to pass “one big, beautiful bill” to kick off his term, with a focus on cracking down on illegal immigration into the US and clawing back unspent funds authorized by his predecessor for an array of renewable energy programs.

Following the meeting, senators indicated that a lot of the details about the legislation and the procedural tactics lawmakers will take were left undecided. 

“No decisions were made,” Sen. Shelley Moore Capito (R-WV), who helped moderate the session with Trump, told reporters afterward. “The president was listening very intently.

Looming large over the gathering of Republican senators were their colleagues in the House of Representatives who have notoriously struggled at times to move significant pieces of legislation.  

“It was a unity message,” Sen. John Cornyn (R-Texas) reflected on Trump’s message during the meeting. “From my standpoint, the question is what can the House pass. I don’t think it’s more complicated than that.”

Initial legislation also is expected to include an extension of lower personal income tax rates that were adopted in 2017, with the possible inclusion of Trump’s campaign trail pledges to abolish taxes on tips, overtime and Social Security benefits.

“We have a lot of money that we’re going to be clawing back from the Green New Scam,” the incoming president boasted to conservative radio host Hugh Hewitt on Monday.

“The border is going to be secure. We’re going to start it immediately,” he added. “We had the best border we’ve ever had, and we’ll have the best border we’ve ever had times two. I would prefer one, but I will do whatever needs to be done to get it passed.”

Without Democratic votes, a single bill could conceivably reach the 47th president’s desk through a process known as budget reconciliation, which requires a bare majority in the Senate, rather than the usual 60 votes.

Senate Majority Leader John Thune (R-SD) prefers the two-bill approach, with the first package handling border and energy priorities and the second tranche of spending extending Trump’s tax cuts from 2017.

Thune told The Post following the Trump meeting that it’s unclear if the initial wave of legislation would include the president-elect’s promises to abolish taxes on tips, overtime and Social Security income.

“Those things are all on the table. When that gets done is still a point of debate,” Thune said.

“Obviously there is a lot involved in crafting a tax bill…. There are a lot of moving parts. There are a lot of suggestions that have come up, and the president has put on the table, which we will take under consideration,” said Thune.

“But in the end, we want to produce a bill that extends the existing tax policy that will prevent a $4.6 trillion tax increase on the American people at the end of the year, and hopefully accomplish some other things that the president has laid out as objectives,” he added. 

Most of the senators who exited the meeting indicated that they were flexible on the approach towards passing the bill, but very much favored the two-track strategy.

“By far the best chance of success is taking up two bills,” Sen. Ted Cruz (R-Texas) reflected after the meeting, adding that “failure is not an option” and noting that there was near unanimous agreement in the room on that point.

So far, there has been little discussion in the public domain about how the bill will be funded. Sen. Rand Paul (R-Ky.) lamented that there had been talk in the Mansfield room about using tariffs. 

“The main pay-for I heard in there was talk of big beautiful tariffs on everything,” Paul groused to reporters. “I still don’t think tariffs are a good idea. I think international trade has made the world incredibly prosperous.”

For a reconciliation bill to work, a Senate parliamentarian would have to determine whether the provisions in the measure only affect spending levels and do not overtly change federal policies — a tricky balance previously tested by Democrats during Biden’s initial two years in office.

It could then pass both chambers of Congress by a simple majority. Republicans currently hold a 53-47 edge in the Senate, and a 219-215 cushion in the House.

House Speaker Mike Johnson (R-La.), who greeted Trump as he entered the Capitol Wednesday, has backed the once and future president’s single-bill option, which would increase the stakes of that legislative lift but diminish the power of Senate Democrats to block key agenda items. 

Johnson and Trump also met earlier this week to discuss a way forward for their respective conferences.

The president-elect suggested that changes to the IRS code could also be backed by Democrats hoping to deliver a win to their constituents, though Senate Majority Leader Chuck Schumer (D-NY) railed against what he called a giveaway to the “ultra-rich” in a Wednesday floor speech.

Trump has also signaled he may even be open to courting some Democratic votes with the legislative push, potentially by providing so-called “Dreamers” — migrants who came into the US illegally as children — a path to citizenship.

“I’m OK with talking about the Dreamers,” he also told Hewitt, indicating a possible amnesty for as many as 3 million migrants who crossed the US border as unaccompanied minors.

“These are people that have been here since, in many cases, birth. They’ve been here for many years. They were very young, and now they’re middle-aged people. In some cases, they’re old people. It’s been talked about, and I’m certainly open to talking about it,” Trump explained.

Meanwhile, several Trump cabinet picks visited Republican and Democratic senators earlier Wednesday for closed-door meetings — including Health and Human Services Secretary-designate Robert F. Kennedy Jr. and Director of National Intelligence-designate Tulsi Gabbard.

GOP senators have accused their Democratic colleagues of seeking to stonewall some Trump noms like Gabbard, whose comments about since-ousted Syrian dictator Bashar al-Assad have drawn controversy, in an effort to hamper Trump’s transition.

Sen. Mike Lee (R-Utah), who chairs the Committee on Energy and Natural Resources, called out the panel’s top Democrat for purportedly even stalling Interior Secretary pick Doug Burgum.

“It’s disappointing to see Ranking Member [Martin] Heinrich [D-NM] seeking to delay issuance of a hearing notice instead of focusing on delivering what voters demanded in November’s election: restoring American energy dominance after years of high energy prices and policy failures,” Lee said in a statement Wednesday.

“Governor Burgum submitted his paperwork to the Office of Government Ethics last week, and the committee currently has the same amount of paperwork that Energy and Natural Resources Committee Democrats had in 2009 when they noticed confirmation hearings,” he added.

“I, as chairman, have made every effort to work with our Democratic colleagues, but we won’t give in to delays that undermine the American people’s mandate. It’s time to move forward and focus on solutions that will unleash America’s full energy potential, and I hope Democrats will work with us to deliver results for the American people.”

Some Republicans, however, have said the routine filings are not coming fast enough from top noms.

A Republican aide told The Post Tuesday that Attorney General-designate Pam Bondi, who is almost certain to be confirmed, is holding up the start of her confirmation hearing by not handing over a background file and financial disclosures.

The Office of Government Ethics receives copies of both and distributes them to the committees of jurisdiction for each nominee.

In Bondi’s case, her confirmation hearing has been tentatively set for Jan. 15 and 16, with a possibility that the Senate could vote to approve her by Trump’s inauguration Jan. 20.