That part right there. The EXACT same thought I had.
Not really that much of a shock. The dems know they have to hold on to every vote they can get because their coalition of “people who are not the Republicans” is slim and always will be prone to fracturing. It’s far harder to be the big tent party.
Now she can’t run as a Democratic party member and it’ll be even harder for her to hold onto the seat. She’ll have to effectively get people from both parties to see her as the better choice. There’s almost no Democratic voter who will at this point, and Republican voters NEVER vote for anyone but GOP people (they will sit out rather than vote for another party).
She knows she’s toast. This was her way of sticking a thumb in the dems eyes and trying to gain more attention for herself. What it WILL likely do is toss that seat back to the GOP because she’ll try and run as independent and it’ll probably split off just enough votes from the democratic primary winner for her to tank their chances.