Whitmer on whether Harris can win Michigan: 'I'm optimistic, but I'm sober'

<p>Guests: Jena Griswold, Margie Omero, Alencia Johnson, Gov. Gretchen Whitmer, Sen. Laphonza Butler</p><p>Donald Trump is doing it again. Tonight: the Republican nominee's plan to undermine a free and fair election. Then, new evidence of a post-debate polling bump for Democrats. Plus, Michigan Governor Gretchen Whitmer on the fight for her key swing state. And why did the self-proclaimed "leader on fertilization" allow his party to block federal protections for IVF?</p> <p><p>Want more of Chris? Download and subscribe to his podcast, “Why Is This Happening? The Chris Hayes podcast” wherever you get your podcasts.</p></