Tariffs will come in but exact levels will be ‘for president and his team to negotiate’, says commerce secretary Howard Lutnick

Hello and welcome to the US politics live blog. My name is Tom Ambrose and I’ll be bringing you the latest news lines over the next few hours.

We start with news that Donald Trump’s commerce secretary, Howard Lutnick, said on Sunday that US tariffs on Canada and Mexico will go into effect on Tuesday, but the president would determine whether to stick with the planned 25% level.