Of course not. Labor unions, by their very nature, are left-wing organizations. Why would they support a candidate that opposes their very nature?
Labor unions are not "left wing by their very nature." The guilds of old - of which labor unions are a modern corruption - were designed to secure the rights of the working man. There's nothing "left wing" about that - after all defrauding the laborer of his wages (which is what a benevolent society of laborerers is designed to defend against) is one of the Four Sins that Cry to Heaven for Vengeance. So says the Bride of Christ.
The problem with unions is not intrinsic to their nature, but to the Godless, materialistic form of capitalism under which our nation - including all our Labor and Capital - operates. In this system, the rights of the working man are not held as sacrosanct and God-given and inviolable under pain of eternal damnation. No, under this system, the wage due to the laborer is merely another column in the ledger book of expenses which, like all other expenses, the employer is expected to minimize whenever possible. And so the working man, facing extortion of his just wages at every turn by Capital, must needs turn to strongarm organizations (e.g. labor unions) in order to safeguard his rights via counter-extortion. It's an ugly business, but par for the course when the Rights of God and man are cast aside in the service of Mammon.
As to the unions' affiliation with the Democrat party - it's simply one strongarm outfit seeking the protection of a bigger strongarm outfit. And it's yet another example of the (seemingly) paradoxical - but always inevitable - slide of a capitalist society into socialism in order to addresss the evils that capitalism naturally engenders (see Belloc's
The Servile State).
And what does "left wing" even mean in a nation whose very ideals and form of government are godless and masonic? Is "right wing" - which in this nation means siding with usurers and Zionists and warmongers and all manner of evil - really so much better than the "left wing?"
Come on. We're Traditional Catholics. If others have ignorance as an excuse for being tricked into believing in this false Americanist left-right / capitalist-socialist paradigm, we certainly do not.