We should not go overboard on this stuff.
Election law is something clearly laid out in the Constitution assigned in responsibility to the states. It is the states that get to decide about proof of citizenship. That’s not a Democrat versus Trump issue. That’s in the Constitution.
Congress can choose modifications to state laws in this regard, because that also is in the Constitution. There is nothing in the Constitution that empowers the president to override state laws about elections.
As for Congress making modifications to state laws, it will require 60 votes in the Senate. This is probably a good thing. Conservatism demands that we have as few laws as possible intruding into everyday life. The 60 vote threshold reduces the number of laws that we would have to endure.
If the Feds had no role in voting whatsoever, the 15th Amendment would not have come about.
I would argue my civil rights are being violated when illegals in another state are flagrantly allowed to vote for the President and Congressmen.