Donald Trump's Republican supporters sent a letter to the Norwegian Nobel Committee urging it to consider Mr Trump for next year's award - REUTERS

Donald Trump has been formally nominated for a Nobel Peace Prize for the US President's efforts to solve the North Korean nuclear tensions.

A group of 18 of Mr Trump's biggest Republican supporters in the House of Representatives sent a letter to the Norwegian Nobel Committee urging it to consider Mr Trump for next year's award in recognition of "his tireless work to bring peace to our world."

Mr Trump and North Korean leader Kim Jong-un are working out the details of a historic summit that could take place by the end of May or early June.

Yet an agreement by which the North would give up its nuclear weapons and allow for the world to confirm it still appears far off. The United States has reached aid-for-disarmament deals with North Korea before, but they've ultimately failed.

Recent comments from the leaders of the two Koreas have raised hopes.

But as remarkable as the imagery and symbolism have been recently, many analysts point out that it is too early to speculate on the outcome of ongoing negotiations with a regime that has been led with an iron fist by the Kim dynasty for nearly 70 years.

"It's surreal in the sense that it's clearly premature to be talking about giving anybody a Nobel Peace Prize," said Aaron David Miller, a former US diplomat and negotiator in several Democratic and Republican administrations.

But "if in fact the diplomacy goes the right way," the scenario is "conceivable," he told AFP.

The Nobel chatter also reflects an impassioned debate taking place over the exact role of America's president in the ongoing diplomatic overtures.

On both sides of the US political divide, the reasoning has bordered on the absurd, with one camp asserting that Mr Trump played no part in the ongoing detente on the Korean peninsula, while the other attributes it solely to his intervention.

In Washington's fevered political climate - in which "it's virtually impossible for one party to give credit to the other" - Mr Trump's personality and "inability to think about the 'we' rather than just the 'me'" is further reinforcing the antagonism, Mr Miller said.

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"The aversion to giving him the Nobel on the Democratic side is caught up in the aversion to him."

The award of the prize to Mr Trump's Democratic predecessor, just a few months after he took office, had itself aroused surprise and strong reactions.

"I am at the beginning, and not the end, of my labors on the world stage," Barack Obama said on December 10, 2009 in Oslo, as he acknowledged "the considerable controversy" surrounding the committee's decision at the dawn of his first term.

Korean detente How did we get here?

Beyond Mr Obama, three other US presidents have received the award: Theodore Roosevelt, Woodrow Wilson and Jimmy Carter.

Anticipating the Trump-Kim summit, and the protracted diplomatic negotiations that lie ahead, some have opted for a humorous approach.

Washington Post columnist Dana Milbank penned a spoof acceptance speech by Mr Trump, complete with the leader's trademark verbal tics.

"The haters and the liars say I don't deserve this award.... Wrong!" said Milbank's Trump.

"I was, like, really smart, when I made peace with Rocket Man. By calling him short and fat and saying I would totally destroy him with fire and fury from my big and powerful nuclear button, I got him to negotiate."

For Mr Trump's fervent supporters, the looming summit with Kim - all but unimaginable just months ago - is proof that his often-impulsive presidency can break through barriers, change the rules of the diplomatic game, and succeed where his predecessors have failed.

Mr Trump's supporters on Capitol Hill are pushing the idea that he deserves a Nobel, and Mr Trump clearly enjoyed it Saturday when supporters at a Michigan rally began chanting "Nobel" as he talked about North Korea.

Indiana Rep. Luke Messer made the suggestion in the letter sent to members of the Norwegian Nobel Committee on Wednesday, signed by 18 Republicans.

The letter said that North Korea has long ignored international demands to cease its aggressions but that Mr Trump's "peace through strength policies are working" and bringing North Korea to the negotiating table.

It said the Trump administration united China and others in imposing strict sanctions.

Korea summit | Read more

"The sanctions have decimated the North Korean economy and have been largely credited for bringing North Korea to the negotiating table," the nomination letter stated.

Mr Messer is running for the Senate in Indiana, where support for Mr Trump has become a litmus test for Republican voters.

The lawmakers who signed the letter are among the most conservative in the House. The group includes several other lawmakers who are also running for governor or senator in Republican-leaning or strongly GOP states.

Among them: Rep. Marsha Blackburn, who is running for a Senate seat in Tennessee; Rep. Kevin Cramer, who is running for the Senate in North Dakota; Rep. Evan Jenkins, who is running for the Senate in West Virginia; and Jim Renacci, who is running for a US Senate seat in Ohio. Rep. Diane Black, another signatory to the letter, is running for governor in Tennessee.