Monday morning, Fox & Friends played a video clip of labor union president Richard Trumka, who claimed the President Trump’s policies were hurting American workers.

President Trump tweeted about the matter soon after the Fox & Friends segment, writing:

Richard Trumka, the head of the AFL-CIO, represented his union poorly on television this weekend. Some of the things he said were so against the working men and women of our country, and the success of the U.S. itself, that it is easy to see why unions are doing so poorly. A Dem!

Below is the Fox & Friends video that the president was commenting on:

President Trump then tweeted a “Happy Labor Day” wish, noting the economic progress being made in America:

Happy Labor Day! Our country is doing better than ever before with unemployment setting record lows. The U.S. has tremendous upside potential as we go about fixing some of the worst Trade Deals ever made by any country in the world. Big progress being made!

The president also re-tweeted several messages Monday morning, as follows: