Much Ado about Nothing! When you review the bio of all Republicans leaving, they are largely OLD and I am certain retiring. A couple are leaving for health or family health reasons. Sean Duffy has a child on the way that will have health issues.
But all but one are leaving after serving five years or more, meaning they will continue to receive their income with all the COLA increases Congress votes for themselves through their lifetime. This is not news!
And there are a couple younger leaving, and I believe it is to prepare for a larger election in the near future.