President Trump nevertheless caused controversy at the summit after refusing to sign the final communique shortly after leaving Canada, and launching a personal attack on Canadian Prime Minister Justin Trudeau.
She said Trump's move underlined the need for greater cooperation within the European Union.
Jeremy Corbyn said Donald Trump was to blame for the summit's "failure".
A photo of a seated President Donald Trump while the rest of the world leaders gather around him during the G7 summit has gone viral on social media.
USA trading partners are furious over Trump's decision last week to impose tariffs on steel and aluminum imports from Canada, the European Union and Mexico as part of his "America First" agenda.
Multilateral action was needed to prevent "tit-for-tat" reprisals, she said, adding that the concerns of countries about unfair trade practices must be "addressed not ignored".
Porsche's Electric Car To Be Called Taycan
The existing engine plant is being expanded to manufacture electric motors, and a new body shop will also be developed. The Taycan's pair of electric motors will output "over 600 hp" and launch the vehicle to 200 km/h in under 12 seconds.
Based on Justin's false statements at his news conference, and the fact that Canada is charging massive Tariffs to our U.S. farmers, workers and companies, I have instructed our U.S. Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the U.S. Market! "Instead, we act then too", Merkel said in an unusually combative tone.
Trump has been on a tear about German trade and cars in particular, bringing up the issues with other European leaders with whom he has met over the last few months, the source said. Larry Kudlow, Trump's chief economic adviser, accused Trudeau of undermining US interests at the summit, calling Trudeau's actions "a betrayal".
The US leader accused the G7 nations of "robbing" the US, and stated his nation had been "taken advantage of for decades and decades" in global trade.
Merkel, French President Emmanuel Macron and the other leaders clashed with Trump over steel and aluminum tariffs as well as his decision to abandon a deal with Iran to limit its nuclear program. The U.S. president is staring back, arms crossed, as Japanese Prime Minister Shinzo Abe looks on with his arms also crossed.
One key moment in a two-day meeting.
"The other leaders presented their numbers and Trump presented his". "We stand by it and whoever leaves it and turns their back on it is showing inconsistency and lack of character".