Trump revoked his administration's support for the G-7 communique after Trudeau's news conference.
"The communique was agreed by all the parties who attended the G7 and we fully intend to honor it", the spokesman said.
With an eye to the trade dispute, she added: "We won't be bamboozled - we will take action". "Sometimes I get the impression that the US president believes that only one side wins and the other loses".
Russian Federation was pushed out of what was then the G8 after it annexed Crimea from Ukraine in 2014. The official said disagreements remain, particularly with the USA on a number of issues, but the goal remains to reach agreement on all the big issues.
There were also no more references to Trump's off-the-cuff remark about the need to bring Russian President Vladimir Putin back into the fold of the worldwide community.
Meanwhile, Britain on Monday urged the United States to honor free-trade commitments made at the G7 summit even after US President Donald Trump rejected a joint communique in a bitter spat over tariffs. Trump focused his conversation with Macron on German trade for about 15 minutes in the one-hour meeting. He said he was unhappy at an end-of-summit press conference by Trudeau after he left the summit, in which Trudeau said Canada would retaliate against US trade tariffs.
Senior Trump aides escalated the rhetoric on Sunday morning's news shows, with chief economic adviser Larry Kudlow calling Trudeau's remarks "a betrayal" on CNN's "State of the Union" and top trade adviser Peter Navarro saying on "Fox News Sunday" that "there's a special place in hell" for the Canadian leader.
"Let's be serious and worthy of our people".
Le Maire said that the two sides were days away from agreeing joint Franco-German rules for calculating corporate tax, the least contentious issue under negotiation. Trump imposed tariffs of 25 percent on steel imports and 10 percent on imported aluminum from the European Union on June 1, a move he said was meant to protect US national security.
German Foreign Minister Heiko Maas said a united front by the other six G7 nations should be the response to Trump's "America First" approach.