A telling quote from this NYT piece on NAFTA:

potential demise of the trade deal prompted supportive messages from
labor unions, including the A.F.L.-C.I.O. and the United Steelworkers,
as well as some Democrats.

trade proposal that makes multinational corporations nervous is a good
sign that it’s moving in the right direction for workers,” said Senator
Sherrod Brown, Democrat of Ohio.

According to the National Journal, Brown shares a nine-way tie for most liberal Senator.

For more on anti-market bias, see The Myth of the Rational Voter, now reluctantly enjoying its ten-year anniversary…