President Donald Trump’s promise to deport “millions and millions” of immigrants will hinge on securing money for detention centers.

An immigration group sued on Wednesday to block President Donald Trump's move to expand fast-track deportations under his pledge to remove millions of people who are in the country illegally. People facing fast-track deportations do not have access to an attorney and are unable to present evidence against their removal from the U.

ICE has already begun rounding up hundreds of illegal immigrant criminals across the country just two days into the Trump administration’s aggressive push — with one Boston-area Haitian gang