WASHINGTON – Skeptical senators Tuesday challenged Homeland Security Secretary Janet Napolitano on how her department plans to provide a “meaningful” border-security figure, which is the key to a route to citizenship for immigrants here illegally.

The national mood on immigration has changed dramatically since Arizona approved a first-of-its-kind immigration law, igniting a furor over border security and the country's treatment of immigrants.

A group of business, religious and law enforcement leaders on April 17 endorsed the broad outlines of a comprehensive and nuanced proposal by eight U.S. senators, including Arizona’s John McCain and Jeff Flake, to fix the nation’s woeful immigration system.

Retired U.S. Supreme Court Justice Sandra Day O'Connor is hosting a forum on the economic implications of extending U.S. citizenship to immigrants living illegally in the country.

WASHINGTON ai??i?? A bipartisan group of senators is almost ready to share with colleagues and voters an immigration overhaul crafted over several months.

There was a time when Karina Galicia would change the subject when her friends brought up immigration. She constantly worried that she would be arrested if anyone found out she was living in the U.S. illegally. But after years of hiding it, she decided last year that telling her story would do more good than harm.

WASHINGTON ai??i?? Senators writing a comprehensive immigration bill hope to finish their work this week, opening what's sure to be a raucous public debate over measures to secure the border, allow tens of thousands of foreign workers into the country and grant eventual citizenship to the estimated 11 million people living here illegally.

SAN FRANCISCO ai??i?? The federal government argued Tuesday that a section of Arizona's 2010 immigration law that prohibits "harboring" people living in the country illegally should be blocked.

Sen. John McCain worked to lower expectations surrounding his plan for immigration reform and hinted at difficult disagreements in Congress during an emotional town hall meeting in his home state of Arizona on Monday that saw people on both sides of the debate exchange fiery insults.

Once, the barren mesas and shrub-covered canyons that extend east of the Pacific Ocean held the most popular routes for illegal immigrants heading into the U.S. Dozens at a time sprinted to waiting cars or a trolley stop in San Diego, passing border agents who were too busy herding others to give pause.