The EU has submitted a list of US products to the WTO that could be slapped with tariffs, which includes food products like corn, rice, peanut butter and orange juice.
Kudlow dismissed Trudeau's complaints, telling Fox News host Chris Wallace that Trudeau was reacting disproportionately to Trump's commitment to protecting US industries and jobs.
Canada is the No. 1 steel exporter to the United States.
The Dairy Farmers of Canada branded as "troubling" and "worrisome" comments Trudeau made on NBC's Meet the Press that Canada was considering allowing US dairy greater access to the Canadian market as part of the renegotiation of the North American Free Trade Agreement.
President Donald Trump's top economics adviser acknowledged Sunday the trade dispute with United States allies could jeopardize the booming American economy but dismissed criticism of the administration's stance as overblown.
Mexico announced penalties on us imports like pork, fruit, cheese, and steel, while the European Union said it would announce its retaliatory measures in June. But after allowing a negotiation period, Trump announced Thursday he would go forward with the tariffs, which went into effect Friday.
"We know there is a risk to employment but I think we'd like some time to have a discussion with the government about what kind of support is appropriate", he said.
Trump, meanwhile, broadened his trade tirades on Twitter into agriculture, writing: "Canada has all sorts of trade barriers on our Agricultural products".
The other six G7 member countries asked Mnuchin to bring to President Donald Trump "a message of regret and disappointment" over the tariffs, Canadian Finance Minister Bill Morneau said at a press conference after the end of a three-day meeting in the Canadian mountain resort town of Whistler, British Columbia. "They kick us on dairy, [which] puts people out of work in Wisconsin". He specifically noted the size of the trade deficit with China as he defended his moves.
"When you're nearly 800 Billion Dollars a year down on Trade, you can't lose a Trade War!" he tweeted Saturday.
"This is a trade dispute, if you will". The NAFTA talks have broken down, the steel tariffs are on. We're still having those conversations.
Last November, the brothers helped fund Meredith Corporation's deal to buy USA magazine publisher Time Inc, which owns of some of the world's most famous magazine brands, sparking concerns that they would use their investment to wield editorial influence.
"I don't think there is a legislative response. These are very serious matters that could affect the economy".
Last month and earlier Thursday, Ottawa also unveiled measures to stop transshipments of steel and aluminium into the North American market, hoping to satisfy United States concerns and avert a trade war. "We are hurt and we are insulted", she added.
"So, what do you feel as if the president wants from you in putting these tariffs up?"
Another trade war is brewing - one between President Trump and the Koch brothers.