Here & Now 's host Lisa Mullins speaks with Chicago Alderman Raymond Lopez, a Democrat, about why he wants to work with President Trump's administration on immigration. Chicago is a sanctuary city and currently bans local police from working with federal immigration officials.

Since Trump’s victory in November, the American Business Immigration Coalition has held several dozen in-person and virtual training sessions with more than a thousand employers to prep for the sweeps.

In line with Trump’s edict, CNN’s Natasha Bertrand, Priscilla Alvarez, Haley Britzky and Oren Liebermann report. They’re expected to beef up existing operations to support Customs and Border Protection,

Illinois is already fighting back against one of President Trump’s actions to crack down on immigration. Illinois Attorney General Kwame Raoul filed a lawsuit Tuesday challenging Trump’s executive order ending birthright citizenship for the children of undocumented immigrants.

State and local leaders across the country are bracing for a tidal wave of aggressive immigration policies and possible mass deportations that President Donald Trump has vowed to enact in the hours and days following his inauguration Monday.

President Trump is planning to invoke muscular presidential powers to begin a sweeping crackdown on immigration.