When 100 days out from election day, the political landscape is drastically different than it was just a little more than a week ago.

President Biden is out of the race and Vice President Kamala Harris is the presumptive Democratic nominee. That's shaken up more

than just the presidential race. effects are also being felt in the battle for the

House and Senate and the fight over big issues on ballots in many states including abortion.

Amy Walter is editor-in-chief of the Cook political report with Amy Walter.

Amy, what has this done, this change to the ticket, ticket democratic ticket done to the

Democrats chances of taking back the house or holding on to the Senate.

Well John I think you have to look at it regionally and maybe even look at it state by state

district by district. What you had was a real lack of enthusiasm from the

Democratic base. I think now what you're starting to see is that that enthusiasm now is up and that's

going to help a lot of those blue state or blue district Democrats who were

worried about low turnout.

Now if you're a Democrat that's still sitting in a red or purple state,

it's probably mixed.

There's something about having Biden on the ticket that helped folks who were in maybe more rural leaning areas, rural areas that they could make the case that while they disagreed with

Biden on some issues, they were not going to go that Harris's positions on some issues maybe just a little too much for the folks in those districts, the voters in those districts. In other words, I don't know that it

changes the race for the most competitive seats in the House. What it does do is help Democrats not lose the seats that they should be winning in?

There is a competitive race for the Senate in Pennsylvania, and we're seeing an example of Republicans trying to define Harris as she gets in

this last sprint for the race and connect her with the Senate candidates.

This is an ad from Dave McCormick who's running against Bob Casey.

The nonpartisan Gov Track has rated you as the most liberal senator.

I am prepared to get rid of the filibuster to pass a green new deal.

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