The ongoing partial government shutdown will cut U.S. economic output by about 0.1% every two weeks, the chairman of the White House Council of Economic Advisers said.

The top two Democratic leaders in Congress pulled out of a meeting with President Donald Trump Nov. 28 after he tweeted that a budget deal with them was unlikely, raising the odds that the U.S. government will partially shut down next week.

President Trump abruptly ended the decades-old U.S. tilt toward free trade by signing an executive order to withdraw from an Asia-Pacific accord that was never ratified and by promising to renegotiate the North American Free Trade Agreement.