Sigh - another gmail display of political bias

I had mentioned before that I signed up for emails from a WA State candidate for governor who I think would be good for the state.

Every. Single. Email. that I get from his campaign is put into my gmail SPAM folder. I open the email, hit the Not Spam button but still, the next email from that address - into the SPAM it goes.

If this is not bias, I do not know what is. A lot of people simply clear out their SPAM folders without checking. Google is trying to down-vote this candidate.