Maybe. Republicans usually toe the line. DEMs individually fight about what the line is all the time, it’s a defining characteristic. Not so much with repubs. So, maybe.

The idea is that it gives moderate republicans a path to voting for her.

Without the endorsements, they would feel like they’re betraying their principles and their party to vote D. With them, they can make a choice: Lots of rank and file voters will stick with Trump, but if a few party leaders, recently respected within the party, can vote for Harris, maybe that isn’t such a betrayal after all.

Will it change the vote by 5-10%? Basically zero chance of that. But if it swings a few thousand voters in some strategic areas, it can make a difference. It’s not a strategy aimed at very many people, but those votes on the margins matter.

We’ll know after the election.

It might be that these endorsements help bring in some more moderate Republicans to her side but there’s also a very real possibility that she disincentive the more left leaning voters from voting for her as well. Remember, Hillary lost because she didn’t do enough to incentivize people to vote for her. She just relied on people hating Trump and didn’t rely on people actually liking her. Regardless, this is all conjecture. It’s too early to tell and no one will have a definitive answer until the results are in and a winner is announced.

For me personally, no.