Running Shortlist includes blocking hashtags for:
democrat (but not republican)
voteblue (but not votered)
presidentbiden (but not president harris)
kamala
liberal
liberals
leftist
leftists
barackobama (but not presidentobama)
obama (but not obamas)
berniesanders
votebiden (votekamala, votetrump works tho)
democracy (WOW)
presidentcarter
fuckputin
makeamericasmartagain
libertarian (for some reason)
igcensorship
factsoverfiction
fuckdemocrats
fuckrepublicans
bluewave (redwave still works, shocker)
politicalleft (blocked, but politicalright isn’t)
fascism
fascist
antifascism
prochoice
Note: some of these like #democrat I can search again.
I tried to find news articles that supported your claim that more than just democrats was blocked.
I found a couple that said that democrats were blocked, but found it strange that the journalists did not try other obvious hashtags aswell.
Does anyone know of any third party that can verify this?