PHOENIX — An immigrant mother in Phoenix granted leniency during the Obama administration was deported to Mexico Thursday in what activists said was an early example of how President Donald Trump plans to carry through on his vow to crack down on illegal immigration.

The case of Guadalupe Garcia de Rayos became a rallying cry for immigrant groups who believe Trump’s approach to immigration will unfairly tear apart countless families.

Her arrest prompted a raucous demonstration in downtown Phoenix late Wednesday as protesters blocked enforcement vans from leaving a U.S. immigration office. Seven people were arrested.

Garcia de Rayos said on Thursday evening that she didn’t regret her decision to report to Immigration and Customs Enforcement despite knowing she’d risk getting arrested.

Garcia de Rayos spoke from the Kino Border Initiative, a soup kitchen and shelter in Nogales, Mexico, where many migrants go after being deported. Her U.S.-citizen children were by her side, their first time in Mexico, their mother said.