The Immigration Reform Calculus

Emily Schuletheis claims that the “immigration proposal pending in Congress would transform the nation’s political landscape for a generation or more — pumping as many as 11 million new Hispanic voters into the electorate a decade from now in ways that, if current trends hold, would produce an electoral bonanza for Democrats and cripple Republican prospects in many states they now win easily.” She imagines what would have happened if illegal immigrants could have voted in 2012:

Key swing states that Obama fought tooth and nail to win — like Florida, Colorado and Nevada — would have been comfortably in his column. And the president would have come very close to winning Arizona.

Republican Mitt Romney, by contrast, would have lost the national popular vote by 7 percentage points, 53 percent to 46 percent, instead of the 4-point margin he lost by in 2012, and would have struggled even to stay competitive in GOP strongholds like Texas, which he won with 57 percent of the vote.

Harry Enten finds these calculations laughable. His analysis:

All told, it would seem that only about 1.7 million new Latino voters would be added if undocumented immigrants were granted citizenship. Nationally, this would be a net of about 775,000 votes. This would increase Obama’s vote margin, but not to 7pt; it would only go up to about 4.4pt – in other words, half a point from where it actually was in November 2012. Even adding in new Asian voters, who vote at a lower rate than even Latinos, and other undocumented immigrants (and controlling for the percentage who apply for citizenship, percentage of citizens who vote, and the percentage who voted for Obama), the margin probably only goes up to, at most, 4.6pt.

The amount this would shift individual states in elections is debatable. Take Nevada, where, at last count, there were 190,000 undocumented immigrants – the highest percentage of any state population. Most of them are Latino. Apply the same math we did above, Obama would have gained about 17,000 votes. It would have increased his state margin of victory by 1.4pt. That’s not nothing, but we’re talking about the state with the largest percentage undocumented immigrants.

Nate Cohn’s math is similar. Bouie’s read on the situation:

Democrats do stand to strengthen their advantage with Latino and Asian American voters. What Republicans gain, on the other hand, is a chance to compete. Which, given their current poor standing, is far better than nothing.