Tonight on all end.

And I said, you know, we ought to go to court and we ought to bring a lawsuit because they're going to lose hundreds of thousands of ballots, maybe purposely.

Donald Trump is doing it again.

Trump says when I win, those people that cheated will be prosecuted to the fullest extent of the law.

Tonight the Republican nominees plan to undermine a free and fair election.

The American people deserve and I do believe more better than this.

New evidence of a post-debate polling to 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.

They know that and everybody else knows it.

I have been a leader on fertilization.

But all in starts right now.

Good evening from New York. I'm Chris Hayes, seven weeks to go.

We're in the stretch run of this campaign everyone's

obsessing over swing state polling on their phones and various outlets odds for

who will win the reason for that obsession with the just seven or eight states

oh the new poll in Arizona, is of course that we don't

elect our presidents by a popular vote in this country. We have a frankly undemocratic

system, the Electoral College. It's the reality of how American elections for president

have worked for more than 230 years.

And our citizens and our parties and our candidates,

...