[Representatives] have to address the realities created by all those who live in their districts, not just those eligible to vote. Non-citizens and the young in places like Los Angeles and Chicago inevitably impose burdens on government services — for law enforcement, schools and the provision of basic services such as water delivery or emergency medical care. Indeed, that is part of the reason immigration is a major political issue. If representatives do not have the political power necessary to advocate for the total number of people in their districts, their ability to meet their representative obligations is dramatically curtailed.