[wastedyears]

I don’t get the apportionment thing.

Let’s say for example NY loses two seats. Do we lose those two congressman? Who decides who leaves? How does this whole thing work?

[kabar]

The overall number of 435 House seats stays the same. The number of people in the decennial census is divided by 435 to determine the population size of a district. If the population of NY supports two less districts, the other states with increased populations would get a greater numbers of seats in Congress. Simplified version.

[MMaschin]

Apportionment is simply determining how many of the 435 Congressional seats each state will receive. The States will then redistrict their state into the appropriate number of districts. If NY loses 2 seats in Congress it's legislature needs to redistrict the state with 2 less Congressional districts. So yes you would lose 2 Congressmen.

State legislatures may attempt to ensure that lost seats are held by the minority party - exp CA may try to make sure the seats it loses are held by Republicans, but it's not that easy. Illegals tend to be in VERY Democratic areas, so since states need to redistrict by population, and Republican areas would not contain many illegals, it will be hard for them to get rid of Republicans, unless the Republican district abuts a district with lots of illegals.