Talks to renegotiate the North American Free Trade Agreement are scheduled to continue in January. The upcoming meeting will be the sixth round of discussions so far among the three nations party to the trade deal: Canada, United States and Mexico.

Trump has criticized NAFTA (in effect since 1994) as the "worst" deal ever made by the United States and blamed it for the loss of manufacturing jobs and a trade deficit.

After negotiations in November, U.S. Trade Representative Robert Lighthizer said that while progress had been made to modernize NAFTA, he was "concerned about the lack of headway."

"Thus far, we have seen no evidence that Canada or Mexico are willing to seriously engage on provisions that will lead to a rebalanced agreement. Absent rebalancing, we will not reach a satisfactory result," Lighthizer said in a November statement.

Lighthizer said teams involved in the renegotiation would meet in December in Washington and that he hoped partners would "come to the table in a serious way" for "meaningful progress before the end of the year."

Lighthizer's office did not respond to PolitiFact's Dec. 22 requests for more information.

A trilateral statement issued after an October round of negotiations acknowledged that proposals presented by the parties had "created challenges" and that there were "significant conceptual gaps" among them.

Mexican President Enrique Peña Nieto and Canadian Prime Minister Justin Trudeau both said in October that their countries were not planning to walk away from negotiations, despite speculations that some proposals would lead to that, The Globe and Mail reported.

Though seven rounds of discussions were initially planned, additional rounds will be scheduled through the first quarter of 2018, according to the October statement.

The next meeting to renegotiate NAFTA is set for Jan. 23-28, 2018, in Montreal, Canada. As talks continue, this promise remains In the Works.