I don't think Chaffee voted for Alito, don't know about Roberts.
Dewine votedfor both Roberts and Alito, actually people complained about Dewine, but he got most ofthe big votes correct.
If I remember correctly, Chaffee has fought the President every step of the way on judges and the UN.... so, no, I don't find him a huge loss and at 50/50 what would have stopped him from switching over to DEM?