https://www.thirdway.org/memo/is-illegal-immigration-really-a-democratic-plot-to-sway-congressional-apportionment
Elon Musk, who has promoted this view on social media. “Most people in America don’t know that the census is based on a simple headcount of people (including illegals) not just citizens." Musk tweeted in February. "This shifts political power and money to states and Congressional districts with the highest number of illegals."
In March, Musk tweeted "Since illegals are mostly in Democrat states, both the House and the Presidential vote are shifted ~5% to the left, which is enough to change the entire balance of power!" In a subsequent X interview with Don Lemon, Musk put a number on that political power alleging that Democrats have gained 20 seats in the House due to illegal immigration.1 Republican Senator Bill Hagerty of Tennessee said Democrats "want these illegal migrants to create more electoral power for them in their blue states" and estimated Democrats gained 13 seats because of them.