So a reduction in the number House reps from a state like California due to not counting illegals would also equate to a reduction in electoral votes from CA..correct?
A state’s electoral votes equals its two senators plus its representatives in the House. So, yes. Currently, I believe California has 2S + 54R = 56 EV.
It was not yet clear how the census takers would determine the citizenship status of those responding as the Supreme Court last year blocked Trump’s effort to add the question to the census. If his attempt to exclude the illegal immigrants from being counted moves forward, California will end up losing two seats in the House rather than one as was previously expected.
Florida would end up gaining only one seat rather than two and Texas would gain two instead of three, according to the study. But the split of the 435 House seats in the apportionment process will mean three other states, Alabama, Minnesota and Ohio, will end up keeping a seat they each had been set to lose.
According to Pew Research:
In addition to these states, 11 more would gain or lose seats based on population change alone, whether unauthorized immigrants are included or excluded. Five states would gain one seat each: Arizona, Colorado, Montana, North Carolina and Oregon. Six states would lose one seat each: Illinois, Michigan, New York, Pennsylvania, Rhode Island and West Virginia.