A line chart comparing future population forecasts for the United States, with rising numbers in millions on the left, vertical axis and years rising along the horizontal axis. Line 1 shows that if historic trends in rising immigration continue, the population is likely to increase from today's 331 million to 434 million by 2100. In contrast, Line 2 shows that if recent anti-immigration policies remain in force, the population will grow much more slowly, to around 376 million.