Editor's Note: Julian Zelizer is a history and public affairs professor at Princeton University, editor of "The Presidency of Barack Obama: A First Historical Assessment" and co-host of the "Politics & Polls" podcast. Follow him on Twitter: @julianzelizer. The opinions expressed in this commentary are his own.
(CNN) - Democrats are making a massive political mistake by calling for the end of Immigration and Customs Enforcement (ICE).
On a Saturday when Americans across the country took to the streets to protest President Donald Trump's hardline shift on immigration policy, more and more prominent Democrats -- from Sen. Elizabeth Warren to Sen. Kristin Gillibrand -- used their voices to advocate for ending ICE as we know it.