It's pretty funny that basically every other country in the world asks for citizenship in its census but this is seen is as a right wing issue in America, shows how far to the left America is on some issues.
There is literally written evidence that the intent for adding the citizenship question is racist. We get all the data that we need on citizenship from the mass survey that goes out in the 5's years.
Yep, if you go on the census site now (well maybe not now per say considering their site is in the middle of overhauls) you can find citizenship data from the census bureaus other projects like ACS. Adding the Q to the main form is just a partisan move.
https://twitter.com/ElectProject/status/1144281883959689217