A "Teamster endorsement" means absolutely nothing now a days, maybe 20 years ago.
I presume in their minds that had to pick the worst of two evils, the Democrats are more concerned with the minority vote currently and with the Teamster's past history of leadership on the international and local levels it has a lot of explaining to do with their (nepotism, mob influences and the Good Old Boy - isms).
That is why they are pushing this BLM propaganda, Typical smoke screen to cover their asses. Maybe they are being fooled again by the Democrats that they will actually do something to bail them out of their underfunded pension plans, ain't going to happen and they know it, these plans count on healthy stock and bond markets, a strong economy and high new continuing membership. A Biden/Harris victory will shoot that to Hell, just look at their promises and platform...
They endorse just 3 months prior to the general election should show just all of us how wholeheartedly they are buying this Biden ticket. Many years ago the Teamsters distain for socialism and communism is well documented, apparently they are appeasing and cowering to them now.
I have not received any junk mail from them about their wholehearted endorsement, sort of glad about that...At least they are not wasting our dues money on a lost cause and overwhelming our suffering postal workers who are having a nervous breakdown over these potential mail in ballots.