Report: Census Bureau Stops Tallying Number of Illegal Aliens in U.S. The United States Census Bureau has stopped tallying the number of illegal aliens living in the U.S., an order initially requested by President Trump, according to a report. As part of an executive order issued by Trump, the president had ordered the Census Bureau to tally the number of illegal aliens in each state. The total would allow congressional apportionment, where the number of U.S. House seats are allocated, to be based on the citizen and legal immigrant population to prevent states like California, with large illegal populations, from inflating their congressional power.