Donald Trump just got called out for claiming to be friends with Michael Jackson -- by MJ's brother, Jermaine.
Jermaine ripped Trump, saying ... "name-dropping Michael don't make you cool and won't win you votes. Especially when using botched facts."
It's a known fact Michael and Donald were friends, but Jermaine is taking issue with Trump claiming MJ lost his confidence because of "bad, bad, bad surgery."
Jermaine calls that a "BS" theory and tweeted, "Michael's confidence was affected by the pressures, injustice and vitriol of external circumstances. Period."
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