Tonight President Trump's new tariffs were blasted both by foreign leaders and democrats here at home.

“It's going to just do one thing. You say it may raise prices. It will raise prices for American consumers,” said Senator Mark Kelly.

Even as republicans rushed to the President's defense for imposing 25% tariffs on goods from Mexico and Canada and 10% on items from China

“If prices go up, it's because of other people's reactions to America's laws,” said Department of Homeland Secretary Kristi Noem.

Canadian Prime Minister Justin Trudeau retaliated with his own 25% tariffs on U.S. imports and spoke directly to the American people.

“Tariffs against Canada will put your jobs at risk…They will raise costs for you, including food at the grocery store and gas at the pump,” said Trudeau.

And it's getting personal. Last night at an NHL hockey game in Ottawa, Canadian fans booed the singing of the U.S. national anthem.

This morning President Trump wrote on social media that, "Canada should become our Cherished 51st State.”

The President, who campaigned on promises of lowering costs for Americans, also acknowledging prices could go up

Posting: Will there be some pain? Yes, maybe.” Adding, “It will all be worth the price that must be paid."

White House officials said the tariffs will help with border security and accused Mexico of having an alliance with drug traffickers.

Mexico's President pushed back, saying, “We categorically reject the White House's slander against the Mexican government of having alliances with criminal organizations..”

Mexico also said it will now implement its own new tariffs on the U.S.

China said it's going to file a lawsuit with the World Trade Organization and take “countermeasures” of its own.