‘Union Joe,’ Harris and Trump all made gains with unions — but not enough POLITICOWorking-Class Voters Are Pivotal. Both Candidates Are Vying for Their Support. The New York TimesUnion workers could decide this election — and their unions know it NPRDespite stark differences on worker rights, unions split on Trump, Harris Al Jazeera EnglishUnions focus ground game on turning out their own for Democrats Minnesota Reformer