The U.S. is awaiting retaliation from China over increased tariffs, after talks in Washington ended without a deal on trade, the president’s chief economic adviser said on Sunday.

“The expected countermeasures have not yet materialized. We may know more today or even this evening or tomorrow,” Larry Kudlow told “Fox News Sunday.” Kudlow also said that President Donald Trump’s plan to raise US tariffs on Chinese goods across the board could take months to take effect.

“Call it a couple of months. Call it three months. I don’t know. That will take some time and then of course the president’s going to have to make the final decision on that,” Kudlow said.

The United States began raising tariffs on $200 billion in Chinese imports from 10% to 25% on Friday after American officials accused Beijing of backtracking on commitments made in earlier rounds of negotiations.

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