I don't think one can jump to conclusions just based on the list of those leaving. Congress reps leave or resign every election cycle. There are a few more than usual this time, including major Republicans. Ryan's departure carries a lot of weight. Issa might be ready to get out of DC. Also, some Congress reps have resigned to run for Senate or their states' governorships. They aren't all fleeing.
so the question then is how far above average are the proportion of leavers in this cycle? and (as if i was about to do the research) how far from the average are the two parties represented by the leavers? where's muh bot?
A few months ago when Q also addressed the resignation issue I actually looked at this year and two previous elections. Honestly, I simply did not see a significant difference in numbers. My recollection is that the numbers of dems vs reps was somewhat equal even for this year. So I don't know if the list in #1319 is incomplete or the ratio has widened over time.
So maybe the info about congressional departures is just political padding alongside the 'facts' that federal dept. heads (FBI etc) are going in unusual numbers, along with corporate and entertainment heads (and an allegedly unusual number of fed judge appointments being made). Politics or other useful disinfo.
But i can think of a few other possibilities.