I was just watching Rona McDaniel, the chair of the RNC on Maria Bartiromo's show this morning. McDaniel said that they are suing Google because they found that at this point, nearly all emails the RNC sends out go to Gmail spam folders, or are returned as undeliverable.
My first thought was that it's just spam folders working correctly and google is likely doing this with dem emails as well. However now I'm not so sure. I just checked my own gmail spam folder and while these days I consider NRA emails spam, I realized they used to go to my inbox, but my spam folder was full of NRA emails, including ILA emails. Also, I hadn't noticed it until I looked, but all the update emails that I get from my Republican Congressman are in the spam folder now.
It's certainly not conclusive evidence without knowing if this stuff is going on with "left" entities as well, but it is coincidentally fishy, especially with the midterms right around the corner and Google's history with the 2020 election.