Senate Republicans consider joining Democrats to oppose Trump over tariffs

On the eve of Donald Trump’s so-called “Liberation Day” for tariffs, a handful of Senate Republicans are debating whether to defy the president and join Democrats to stop the US from imposing levies on Canadian imports.

The resolution, offered by the Democratic senator Tim Kaine of Virginia, would terminate the emergency order that Trump is using to justify tariffs against Canada, citing the flow of fentanyl across the US’s northern border. The vote is largely symbolic – the House is not expected to take up the measure – but several defections would amount to a rare and notable rebuke of the president by his own party.

Senator Susan Collins, a Republican of Maine, which shares a border with Canada, told reporters on Monday night that imposing tariffs on Canada was a “huge mistake” that would cause major “disruption in the economies of both countries”. The senator, one of the few Republicans with a history of breaking ranks, indicated her support for the “intent” of the resolution and suggested that she would likely lend her vote as well.

Senator Rand Paul, a Republican from Kentucky, has co-sponsored the legislation. Meanwhile, several other Republican senators, including Thom Tillis of North Carolina, have expressed concern over the impact of tariffs on Canadian goods, set to go into effect on 2 April.

Republican leaders on Tuesday were racing to keep their senators in line, as Trump moves quickly to upend the global trading system. In a post on his social media platform, Truth Social, Trump lashed out at Kaine, who was Hillary Clinton’s running mate in 2016, and delivered an all-caps demand that Senate Republicans vote to keep the national emergency in effect so we can “finish the job”.

“Don’t let the Democrats have a Victory,” Trump wrote. “It would be devastating for the Republican Party and, far more importantly, for the United States.”

In an interview with the Canadian Broadcasting Corporation on Tuesday, Kaine said Trump’s tariffs on Canada amounted to the “largest sales tax ever in the history of the United States” and were based on claims of a “fake” emergency at the northern border. The senator pointed to recent congressional testimony by Trump’s director of national intelligence, Tulsi Gabbard, who cited fentanyl as a top threat to US national security but acknowledged that Canada was not a significant source of trafficking into the country.

“It is an invented rationale to allow the president to do what he wants to do, which is use tariffs to collect revenues so that he can use that revenue to pay for a big tax cut for the rich,” Kaine said. He was hopeful a strong bipartisan show of support “could have an effect on curbing the president’s behavior”.

A vote on the resolution could come as early as Tuesday afternoon, but may happen on Wednesday as Senator Cory Booker, Democrat of New Jersey, delivers a marathon speech on the floor to protest – and draw attention to – the Trump administration’s tumultuous opening months.

In the CBC interview, Kaine said he was still working to get the support of all 47 Democrats, while indicating that he expected to win a handful of Republican votes.

Trump – a self-described “tariff man” who believes levies are the answer to many economic woes – is also challenging Republican orthodoxy on free trade, leaving a handful of GOP senators torn between swallowing a policy they disagree with or opposing the president.

He has moved aggressively to slap tariffs on allies, neighbors and top trading partners, provoking retaliation and shaking global markets. Trump has said he would roll out the new tariffs on Wednesday, claiming the taxes on imports from other countries will “liberate” Americans from their reliance on foreign goods.

Fears of a global trade war have hurt consumer confidence and caused wild swings in the stock markets. They have also hurt Americans’ assessment of Trump’s job performance as it relates to the economy, once one of his biggest strengths. Just four in 10 Americans have a positive view of Trump’s handling of the economy and trade, according to a poll from the Associated Press-Norc Center for Public Affairs Research.

Meanwhile, Americans are increasingly concerned about the implementation of sweeping tariffs on foreign goods, according to a survey conducted recently for the Guardian.

House Republican leaders have pre-empted any effort to reverse Trump’s controversial tariffs on Canada, as well as Mexico and China, by slipping language into their stopgap funding bill, which passed earlier this month. The provision effectively removed the House’s ability to undo the tariffs by terminating Trump’s declaration of a national emergency.

The Senate majority leader, John Thune, has argued that tariffs are an important negotiating tool Trump can use to combat fentanyl traffic into the US. He said this week that the case for tariffs remains “the same”. He was expected to publicly urge Senate Republicans to oppose Kaine’s resolution in a floor speech on Tuesday, according to the Daily Caller.