UAW President Shawn Fain declined to comment on reports that President Joe Biden may address UAW members in Washington later this week during a legislative conference or issue its endorsement.
Fain told reporters his personal view of Trump's track record "and who he is as a person... is pretty much contrary to everything we stand for."
Fain said the UAW would hold formal discussions on its endorsement "and then we'll go from there."
(Reporting by David Shepardson; Editing by Chris Reese)