>> Illinois >> voters will head to the polls tomorrow to pick a full slate of nominees for the November elections on the ballot.

A hotly contested United States Senate seat that Durbin has held for 30 years.

Our Heather Sharon joins us to break down that race and more.

Heather.

So marquee matchup here, Democratic primary to replace the retiring Senator Durbin after 3 decades.

Break that one down for us.

So it was 1996 when Durbin was first elected to the United States Senate.

And the big to replace him was a mad scramble because Illinois politicians know open Senate seats are much more rare than a blue The leading candidates for the Democratic nomination are Lieutenant Governor.

>> Juliana Stratton and us reps, Raja Krishnamoorthi and Robin Kelling.

Now this race has drawn 10's of millions of dollars in spending from outside groups most tub is to boost Krishnamoorthi and to hurt Juliana Stratton.

But she has had a major player in her corner.

That's Governor JB Pritzker who has gone all-in boost her chances.

Now, the Republican nomination also is a crowded contest with former Illinois Republican Party Chair Don Tracy facing 5 challengers.

Be very interesting to see how both of those shake out.

>> Also, a little bit of musical chairs in Congress for open U.S.

House seats.

So everyone's 2027 going to be a very different political era in Chicago.

What races are you watching?

Well, this is a moment of generational Robin Kelly Raja Krishnamoorthi had to give up their safe seats in the U.S.

House to run for Senate.

That means there's been a domino effect to replace them.

Also on the Westside U.S.

Rep Danny Davis is retiring.

13 candidates are running to replace him.

>> But the big race everybody's watching is the 9th district race to replace Janice Schakowsky in that race.

Evanston Mayor de this state, Senator Laura Fine and social media activist Cat Abbott was Ayla are all vying to replace sir.

That race has also drawn his of millions of dollars in outside spending most from a packed the Pro Israel Political Action Committee that will ensure the national spotlight is on that race Tuesday night.

Absolutely.

also local offices up for grabs.

Cook County Board, President Toni Preckwinkle facing a pretty tough challenge in her bid for a 5th term.

What's at stake there?

That's right.

Alderman Brendan Reilly, one of the most conservative members of the City Council has mounted a significant challenge to Preckwinkle who if she wins in November, will tie the record for the longest serving Cook County board.

President.

But she's got to get through Tuesday's primary first dealing with allegations delayed property tax bills and high tax high.

That Riley has pushed pretty consistently.

Yeah.

A lot of eyes on that race as well.

All right, Sharon, thanks so much.

Thanks.

Pick.

And you can find out more about the candidates running in these races and many others by checking out our online voter guide.

>> There we've also got information on where you can cast your ballot on Election