Trump tariffs live updates: Trump doubles tariffs on Canadian steel, aluminum as Ontario retaliates

US President Trump's tariffs are reshaping US trade policy and overhauling decades of free-trade agreements with friend and foe alike.

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Here's where things stand with various US trade partners:

• Canada and Mexico: Trump's 25% across-the-board tariffs on its US neighbors went into effect on Tuesday, March 4. Just two days later, Trump confirmed the US would pause tariffs on goods and services compliant with the United States-Mexico-Canada Agreement (USMCA) until April 2. However, Trump said Friday that he could impose reciprocal tariffs on Canadian lumber and dairy products soon.

• China: Initial 10% on China went into effect in early February, and China retaliated. Trump's second move doubled the rate of tariffs on Chinese imports to 20% from March 4. China has responded with up to 15% duties on US farm goods such as chicken and pork, to start on Monday, March 10.

• European Union: Trump has threatened tariffs on the EU in a move that could bring his trade war across the Atlantic.

In February, Trump ordered a 25% tariff on all imports of steel and aluminum into the US from all countries, set to begin March 12. However, Trump raised that tariff to 50% for Canadian imports of the metals after Ontario placed a tax on US-bound electricity. The trade escalation impacts top trading partners and bolsters industries in US states key to Trump's election.

Trump has also signed a measure that could lead to the implementation of reciprocal tariffs on US trading partners as soon as April 2, aiming to fulfill a frequent campaign promise and raise revenue as Republicans ready a tax and spending bill.