All three of John Fetterman's top communications staffers have resigned in the last month

[Deminpenn]

6. The one staffer who left for Chicago is originaly

from Chicago. Another one is going to work for the Working Familiies Party, more in line with his views.
I recall reading that some of Sen Casey's staff went over to Fetterman after he was elected to help him set up his office with good staffers who knew how the Senate/Congress works. I'm not really surprised at least one of them would return to Sen Casey.

I voted for Fetterman, but think the jury is still out on him. I won't be shocked if he's a one term senator either by his own choice or by the voters. I'm happy he votes with Biden/Dems which is a key to continuing to confirm federal judges. During the campaign his social media trolling, hoodie and cargo pants had a place, but he's a US Senator now, a job that comes with a dress code and a requirement for decorum. He needs to grow up and maybe is showing signs of doing so.