WASHINGTON — The Trump administration is seeking to delay court proceedings over whether it must refund importers billions of dollars in tariffs recently struck down by the U.S. Supreme Court, marking a contentious start to the next phase of the legal fight.

The government wants to wait as long as four months before reviving litigation before the U.S. Court of International Trade on the refund question, according to a filing by the Justice Department late Friday. DOJ lawyers criticized attorneys for companies in one of the lead cases for pressing to reopen the legal wrangling as soon as possible.

“Complexity in the future counsels appropriately careful process, not breakneck speed,” the government said.

The Justice Department appeared to acknowledge that there will be a refund process after its loss in the Supreme Court, warning that “the coming process will take time” and noting the example of an earlier mass refund situation that took years to play out.

But the government’s filing didn’t offer a full-throated assurance that the administration would commit to refunding all importers the full amount of tariffs they paid.

The DOJ lawyers wrote that a delay wouldn’t hurt companies because “monetary loss is a classic harm that can be remedied by payment of money with appropriate interest.”

The Supreme Court’s 6-3 decision on Feb. 20 was silent on the refund question, meaning it will go back to the New York-based trade court to resolve. But that next phase is in limbo until the Supreme Court and U.S. Court of Appeals for the Federal Circuit formally close out their proceedings, which hasn’t happened yet.

Over the past week, lawyers for companies seeking refunds have asked the Federal Circuit to swiftly take steps to finish its phase of the case and urged the trade court to move quickly to establish a schedule for the next round.

The Justice Department, by contrast, wants the Federal Circuit to wait until the Supreme Court finalizes its judgment, which can take up to 32 days. After that happens, the government is then arguing for another 90-day delay, saying that it would “allow the political branches an opportunity to consider options.”

The administration accused the companies of pushing for a speedy schedule out of an “apparent desire to be the center of attention” in the future proceedings before the trade court.

The latest filing also referred to Trump’s move to impose new global tariffs under a different legal authority after the Supreme Court ruled, citing the fact that the levies declared unlawful by the Supreme Court “have been replaced by vigorous new tariffs.”

The government didn’t elaborate on the relationship between the new duties and the question of whether businesses should be refunded for money they already paid.

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