"I don't know if I was able to convince them", Putin said.
But on the G20 margins, Trump scored one victory for his "America First" agenda with the signing of a successor to the North American free trade pact Nafta, the US-Mexico-Canada Agreement (USMCA).
The trio, who have often been at loggerheads on trade, used the G-20 Summit to resolve the trade dispute with America's closest neighbours.
"This has been a battle, and battles sometimes make great friendships", Trump said at the start of the signing ceremony. Lawyers, officials, and media reports later said that the Ukrainians were taken to Moscow, where 21 were confined to the Lefortovo jail and the other three were in a hospital at another jail.
Trump's criticisms of China's trade policy enjoy wide support across the USA political spectrum, but some fear that the president has bitten off more than he can chew with a go-it-alone campaign that could damage markets worldwide.
Former President George HW Bush dies at age 94
He served only one term in the White House After Bill Clinton defeated him in the 1992 election, but his son George W. As he accepted the Republican Party's nomination for president in 1988, Bush pleaded for a "kinder, gentler nation".
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Priyanka Chopra , 36, and Nick Jonas , 26, got engaged in a private roka ceremony in Mumbai in August this year. The next much-awaited wedding of the year is that of the global icon Priyanka Chopra and her beau Nick Jonas .
Trump says close to doing something with China on trade
Commenting on a breakfast meeting between President Donald Trump and his Argentine counterpart and summit host Mauricio Macri, Ms. Turkish President Recep Tayyip Erdogan, who has been sharply critical of Saudi Arabia over the incident, is also in attendance.
He says the parties have "taken a lot of barbs and a little abuse" during the renegotiation.
Merkel said she had also discussed Syria with Putin, "especially in the Idlib region", where a fragile ceasefire has been negotiated between rebels and Syrian army forces backed by Moscow.
The summit marks a quick return to the worldwide stage for Prince Mohammed after the killing of journalist Jamal Khashoggi in the kingdom's Istanbul consulate.
European Union leaders urged G20 participants to address concerns about journalist safety and the Saudi-backed war in Yemen.
By contrast, Putin exchanged a happy grin and an elaborate, highly visible handshake with Saudi Crown Prince Mohammed bin Salman, who has faced widespread outrage over the killing of journalist Jamal Khashoggi at the Saudi consulate in Istanbul in October.
In an exclusive interview with CNN's Wolf Blitzer on the sidelines of the global summit, Pompeo said Trump scrapped the anticipated meeting "because the Russians behaved in a way that is deeply inconsistent with worldwide law".