On the subject of Russia, Trump said he thought it would be "an asset" to have the country in what would be the G8. Moscow has denied the allegations.
Vienna has been discussed as a possible venue for a summit between Vladimir Putin and Donald Trump, the Kremlin said Saturday. Russian Federation joined the G-7 in the 1990s, making it the Group of Eight, but was expelled after its annexation of Crimea in 2014.
Speaking in a solo press conference from the resort town of La Malbaie in Quebec, the president said that for too long, USA trade has suffered from "bad" trade deals agreed to by past US presidents. He says "we're not looking to play games".
Soon after he headed out to Singapore where he will meet with North Korea's leader Kim Jong-un later in the week.
Trump told reporters he pressed for "fair and reciprocal" trade practices at the G-7 meeting in Canada, urging his foreign counterparts to eliminate all tariffs, trade barriers and subsidies in their trading practices.
German Chancellor Angela Merkel said European Union countries at the summit agreed that the conditions to readmit Russian Federation had not been met and even Moscow seemed to reject the suggestion.
The White House says President Donald Trump will deliver a statement before departing a meeting of industrialized nations in Canada.
"Trump came late, he's leaving early and he gave no ground whatsoever", Al Jazeera's John Hendren, reporting from Quebec, said.
Summit host Canada's Prime Minister Justin Trudeau sided with his European and Japanese colleagues against the unpredictable USA leader and his "illegal" levies on steel and aluminum imports.
Trump's press conference Saturday marked his first solo press conference since February 16, 2017.
"We didnt do votes or anything, but it has been discussed", he said.
The weekend meeting marked the first time other countries began employing new way of dealing with Trump in person, pushing back on his declarations and threats and trying to illustrate the damage he was doing to the US economy.
European officials at the summit were shocked by the idea, or dismissive, and Tusk, while admitting that it was hard to be surprised by Trump's pronouncements any more, said: "Let's leave the G7 as it is".
"The United States has been taken advantage of for decades and decades", Mr. Trump told reporters, adding that did not blame G7 leaders for the "unfair" trade deals.
Most leaders at the summit have clashed with Trump over new tariffs, which impose a 25 percent tax on imported steel and a 10 percent tax on imported aluminum.
On Saturday, Trump repeated his desire to have a sunset clause in an updated NAFTA deal, a demand that Canadian Prime Minister Justin Trudeau has rejected.
President Donald Trump has opened his second day at an global summit at a breakfast discussion on gender equality.
Trudeau had made the issue of gender equality a priority for the gathering. Then he tried to ease tension with friendly banter and vague claims of progress in trade talks.