Sen. Jeff Flake has gone public with his threat to stall judicial nominations seeking action to rebuff President Donald Trump on tariffs.

It comes more than a week after the Arizona Republican first held up the nomination of Britt Grant to be a judge on the Atlanta-based 11th Circuit Court of Appeals at the Judiciary Committee.

“We’ve approved a number of judges. That is important,” Flake said Sunday. “But, Article I — the Congress, Article II — the executive, are important as well.”

“I do think that unless we can actually do something other than just approving the president’s executive calendar, his nominees, judges, that we have no reason to be there,” Flake said. “So, I think myself and a number of senators, at least a few of us will stand up and say let’s not move any more judges until we get a vote for example on tariffs.”

Flake was asked about his procedural maneuvering during an interview with George Stephanopoulos on ABC, during which he was more direct than he was with reporters last week. The senator had been particularly vague about the nature of his objections.