Donald Trump signed a presidential memorandum on Tuesday, reports CNN.<br />It excludes undocumented immigrants from being counted in congressional districts.<br />That is... when district lines are redrawn next year.<br />Like the attempt to add the question onto the census, the memorandum marks another effort.<br />This effort would likely impact the balance of power in states and the House of Representatives.<br />The power is actually based on total population, meaning several factors weigh every move.