Sounds like he could have written some of the teaching of common core.
Check it out:

Video surfaced on Thursday showing Michael Mulgrew, president of New York’s United Federation of Teachers, as he unloaded a hateful rant against critics of the Common Core Standards Initiative.

“If someone takes something from me, I’m going to grab it right back out of their cold, twisted, sick hands and say it is mine!” Mulgrew bellowed clownishly. “You do not take what is mine!”

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