The following site gives the questions that have been asked on the USA census since 1790.
https://www.census.gov/history/www/through_the_decades/index_of_questions/1790_1.html
The CITIZENSHIP question has been asked on the following census: 1820, 1830, 1870,1880, 1890, 1900, 1910, 1920, 1930, 1940, 1950.
The CITIZENSHIP question has been asked in the past census when there is a significant number of immigrants.
Therefore, we already have the precedent for asking the question.
I see no reason why the citizenship question cannot be asked in 2020.
I know it is difficult for lazy government bureaucrats to dig into the files, but there are probably all sorts of reasons given in the past that would placate the Supreme Court today.
I wonder why it was eliminated after 1950?
” there are probably all sorts of reasons given in the past that would placate the Supreme Court today.”
It’s a flawed premise. Roberts screwed beacause he dislikes Trump. There would have no problem for any other POTUS. It was not because Roberts didn’t like the stated reason, it was just a BS excuse to screw the countrty...again.