G20

On Twitter, the president cited increased tensions between Ukraine and Russia as the reason for his decision.

While Trump has routinely argued that the tariffs will encourage companies to bring jobs back to the U.S., many are simply looking for cheaper alternatives in other Asian nations.

In their first sit-down talk since July, National Security Adviser John Bolton said President Donald Trump wanted to discuss security, arms control and regional issues with Russian President Vladimir Putin.

Kremlin foreign policy aide Yuri Ushakov told reporters that Putin and Trump will meet on December 1 in Argentina, disregarding the president's suggestion that the meeting may be canceled.

More than 22,000 police and security agents are set to put the city on lockdown, with 33 protests against the summit planned.

"He's under investigation for possible collusion with the Russians. We don't know what kind of connections he has financially, conflicts of interest," Democratic Senator Jeff Merkley warned.

"We really believe we are in a strong position either way. We are at $250 billion [in tariffs] now; we can more than double that," the vice president said.

"The law of the fittest – this cannot be the future of global trade relations," French Finance Minister Bruno Le Maire said.

The Kremlin has repeatedly suggested it was "very likely" and even confirmed that the two presidents will meet in Vietnam, but the U.S. thinks this could be pointless.

The term White House aides reportedly use to refer to Ivanka Trump is definitely not meant to be a compliment. 

Russia's foreign minister said the two presidents could have met "much more" than we know.

The national security adviser also counseled against the May Oval Office sit-down with Russian diplomats, Associated Press reported.

While Trump has worried some that he spoke to Putin without any official record of it, the Kremlin tried to set the record straight.

At the dinner before the leaders spoke, Trump appeared to be signalling toward the Russian president.

President Donald Trump shares a disdain for the media with Vladimir Putin, whose time in office has been marked by journalists getting killed.

The hour-long meeting took place without a U.S. translator present at the end of a formal dinner at the G20 summit.

The president has dismissed criticism he was not combative enough with his Russian counterpart.

As Angela Merkel looks set to enter her fourth term, a power shift at the top of world politics appears inevitable.

Chinese social media users who wanted to discuss Putin during the G20 were out of luck.

The illiberal forces unleashed by the president and his fellow nationalists in Europe abrogate the very values that make us Western.

Vladimir Putin's spokesman said Trump was 'skillfull' and 'efficient' after the two leaders met in Hamburg.

Putin's German language skills are well-known, thanks to his past career as a KGB spy in East Germany.

The president praised Germany's Angela Merkel and sat down with Russia's Vladimir Putin among other high-level meetings in Hamburg.

The Russian leader said Trump is a good listener, answers and thinks fast enough.

Trump is positive he will visit London but there's still no date set.

As her husband and Putin chatted, the first lady was sent in to try to bring the discussion to a close. The men ignored her.

Russian senators, parliament members and media were quick to note the positives even before the meeting was over.

The president has long wrestled with the idea of diet soda as an agent for weight loss.

President Donald Trump and German Chancellor Angela Merkel have notable disagreements on the issue of climate change.

President Donald Trump was forced to settle for a less-than-prime position in his first G20 group photo.