Don't expect him to apologize, though.
The lonely US role at the G20 summit, a forum of the world's most powerful economies that Washington once dominated, is exactly consistent with what Trump sees as his mandate for a nationalistic, "America first" foreign policy.
As Trump boarded Air Force One in Germany for the long flight across the Atlantic, some G20 leaders were left to reflect that their fears that he would be a disruptive force on the world stage have unarguably come true.
By now, most US allies had expected to be settling into the Hillary Clinton era, forging progress based on a shared vision of Western civilization, pursuing familiar multilateral approaches to saving the planet and to globalization.
Instead, they are learning to live with a sometimes capricious American President keen to redefine the West in his own nationalist image, who goes against the consensus of centrist, multilateral international politics, and who is not afraid to pull at the divisions existing within the European Union.
The United States' step back has left other nations, especially Germany under veteran Chancellor Angela Merkel, to take up the banner of traditional Western leadership -- a stunning scenario given Washington's decades-long role as the most prominent player in global diplomacy.
At the end of Saturday's meeting in Hamburg, Trump declined to give a traditional end-of-summit press conference, leaving it to leaders like Merkel, Russian President Vladimir Putin and French President Emmanuel Macron to give their take on developments with no push-back from the US side.
But it didn't need a rare presidential press conference to make clear that the President's second trip abroad showed just how much he has reshaped America's role in the world since taking office six months ago.
The President appeared increasingly at ease on the international stage, mixing with foreign leaders, holding a flurry of bilateral meetings and sitting through long summit sessions -- even if his daughter Ivanka caused a stir by briefly sitting in him for him in one meeting Saturday.
The broad language appeared to be an attempt to keep Washington in the big G20 tent in terms of trade policy, even though leaders recognize there are broad differences of approach. The President won the White House partly by arguing that large multilateral trade deals had shattered the American economy, and he also has cast doubt on the existence of global warming and said the Paris accord would kill US jobs.
Merkel used the word "deplore" to describe her reaction to the US withdrawal from the Paris pact that Trump's predecessor Barack Obama played a prominent role in negotiating. The German leader pointedly noted that the other 19 of the group's 20 nation's agreed the climate change agreement was "irreversible."
The most significant moment of Trump's trip was his more than two-hour meeting with Putin, in which he raised the issue of alleged Russian election meddling. But there were conflicting accounts from each side over whether the President had accepted Putin's insistence that he had done nothing wrong.
A senior Trump administration official told CNN on Friday, however, that Trump did not accept Putin's claim of noninterference.
The meeting will be interpreted by many of Trump's critics as a sign that Russia will pay no real price for an alleged attempt to help defeat Democratic presidential candidate Hillary Clinton.
But in geopolitical terms, it was also significant. Trump effectively welcomed Putin back to the international stage as an equal, validating the Russian leader's core goal of reestablishing Russia's lost influence. Just last month, the US and European Union respectively tightened and extended sanctions on Russia over its alleged incursion in Ukraine. European leaders hope the meeting between Trump and Putin does not mean a weakening of the US position on the Ukraine question, more than three years after Russia's takeover of Crimea.
Secretary of State Rex Tillerson explained that the relationship between the world's two top nuclear powers was too important to let the estrangement between Moscow and Washington linger any longer.
"How do we start making this work? How do we live with one another? How do we work with one another?" he said.
Trump did go some way to living up to his claims to being a master deal-maker presiding, along with Russia and Jordan, over a renewal of a ceasefire deal in southwestern Syria. The deal could lead to more US-Russia cooperation in the looming post-ISIS future in the shattered nation, but critics will see it as Washington acquiescing in Russia's geopolitical influence in the region.
It is also clear that there are sharp differences emerging on what exactly the West, the block of liberal, democratic, globalized nations, that have dominated global politics since World War II, should stand for.
Trump's speech in Warsaw on Thursday -- already one of the seminal moments of his presidency -- set out a strikingly different world view than his predecessors.
"The fundamental question of our time is whether the West has the will to survive," Trump said. "Do we have enough respect for our citizens to protect our borders?"
Those words, coming from a President who has tried to impose a ban on travel by residents of six predominantly Muslim nations to the US, and halted refugee admittances, appeared to be a clear critique of European leaders who have permitted Muslim immigration which critics say threatens Western values.
"Do we have the desire and the courage to preserve our civilization in the face of those who would subvert and destroy it?" he said in a remark that may have been aimed at Merkel herself, who let hundreds of thousands of refugees into Germany -- a move harshly criticized by Trump during his campaign.
While Trump's remarks could be popular in Poland and its right-wing government, they might have set him on a collision course with other allied leaders who view his actions and rhetoric as a far greater threat to Western values than immigration.
There is also frustration in Germany, and in Europe more generally, at the President's repeated criticisms of the trade imbalance between Washington and Berlin, a sentiment that has come through in Merkel's rhetoric as she campaigns for a fourth term in office ahead of September's election.
While Trump was isolated from most of America's allies at the G20, he smartly offered a valuable political gift to one leader, weakened British Prime Minister Theresa May.
The President said that he expected a trade deal that would bolster Britain after its exit from the EU could be agreed to "very, very quickly."
The move stored up a favor, should he need May to return it, in the months to come.
Read this article:
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