That thesis looked shaky in 2020. Voters declined to reelect Donald Trump; for the first time in more than 50 years, Gallup found that Americans who wanted immigration to increase outnumbered those who wanted it to decrease––a seeming rebuke of Trump’s cruel family-separation policy and attacks on Mexicans and Muslims––and that 77 percent said immigration is a good thing for the United States. Then Joe Biden failed to control the southern border and presided over record surges in unlawful entries. By 2024, a majority wanted less immigration, Trump won the presidency while promising the biggest mass deportation in U.S. history, and an analysis of why voters rejected Kamala Harris found that “too many immigrants crossed the border” was nearly tied for the top reason.