President Trump should not back down on including the citizenship question in the census because it is the census, not any other source of information, that is used to apportion congressional districts. Right now the census is rigged to count ALL voting age individuals, including illegal aliens and foreigners.
The President probably knows that California would lose four seats and New York at least two seats if the census were allowed to distinguish between voting age CITIZENS and all others. There also does not appear to be a provision for apportionment that recognizes the 72 million young people who will become voters after the census takes place.
Properly apportioning Congressional districts is included in the twelve-part #UNRIG Unity with Integrity electoral reform plan.
If the President were to introduce the #UNRIG electoral reform plan to be implemented in time for 2022, but announced before November 2020, AND he were to pardon twelve specific black voters while also fulfilling his disclosure promises, he will be re-elected in a landslide.