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This is Fresh Air. I'm Tanya Mosley.

Immigration remains a pivotal issue in this presidential election with

former President Donald Trump and Vice President Kamala Harris

presenting starkly different visions for America's immigration policy.

Trump has doubled down on his hard-lined stance,

promising an unprecedented crackdown if re-elected.

He's vowed on his first day in office

to launch the largest deportation operation in U.S. history,

ending birth rights citizenship for children of undocumented immigrants, and reinstating

controversial policies like the remain in Mexico program.

Harris on the other hand says she will attempt to reframe the immigration debate,

emphasizing her experience as California's attorney general and prosecuting transnational gangs and human traffickers.

She's pledged, if elected, to revive bipartisan border security legislation

and address the root causes of migration from Central America.

My guest today, Pollitzer Prize winning journalist Caitlin Dickerson, has been covering

U.S. immigration for several years now.

Last winter, Dickerson and photojournalist

Lindsay Adario traveled the Darien Gap, one of the most dangerous paths to the

...