Donald Trump is planning to deport millions in the style of Eisenhower. But Donald Trump's plans are triggering criticism and horror among experts.

The Eisenhower-era operation is cited as such by think tanks, academics and historians. Historian Kelly Lytle Hernández told the Washington Post that the operation, which emerged in 1954, was a "racist terror campaign" that relied on scaremongering to encourage people to self-deport. “It's not just a mass deportation, it's a mass racial expulsion.”