WASHINGTON (TIP): President Obama will ignore angry protests from Republicans and announce as soon as next week a broad overhaul of the nation’s immigration enforcement system that will protect up to five million undocumented immigrants from the threat of deportation and provide many of them with work permits, according to administration officials who have direct knowledge of the plan.

Asserting his authority as president to enforce the nation’s laws with discretion, Mr Obama intends to order changes that will significantly refocus the activities of the government’s 12,000 immigration agents. One key piece of the order, officials said, will allow many parents of children who are American citizens or legal residents to obtain legal work documents and no longer worry about being discovered, separated from their families and sent away.

That part of Mr Obama’s plan alone could affect as many as 3.3 million people who have been living in the United States illegally for at least five years, according to an analysis by the Migration Policy Institute, an immigration research organization in Washington. But the White House is also considering a stricter policy that would limit the benefits to people who have lived in the country for at least 10 years, or about 2.5 million people. Extending protections to more undocumented immigrants who came to the United States as children, and to their parents, could affect an additional one million or more if they are included in the final plan that the president announces.

Mr Obama’s actions will also expand opportunities for immigrants who have high-tech skills, shift extra security resources to the nation’s southern border, revamp a controversial immigration enforcement program called Secure Communities, and provide clearer guidance to the agencies that enforce immigration laws about who should be a low priority for deportation, especially those with strong family ties and no serious criminal history. A new enforcement memorandum, which will direct the actions of Border Patrol agents and judges at the Department of Homeland Security, the Justice Department and other federal law enforcement and judicial agencies, will make clear that deportations should still proceed for convicted criminals, foreigners who pose national security risks and recent border crossers, officials said.

White House officials declined to comment publicly before a formal announcement by Mr Obama, who will return from an eight-day trip to Asia on Sunday. Administration officials said details about the package of executive actions were still being finished and could change. An announcement could be pushed off until next month but will not be delayed into next year, officials said. “Before the end of the year, we’re going to take whatever lawful actions that I can take that I believe will improve the functioning of our immigration system,” Mr Obama said during a news conference a day after last week’s midterm elections.

“What I’m not going to do is just wait.” The decision to move forward sets in motion a political confrontation between Mr Obama and his Republican adversaries that is likely to affect budget negotiations and debate about Loretta E. Lynch, the president’s nominee to be attorney general, during the lame-duck session of Congress that began this week. It is certain to further enrage Republicans as they take control of both chambers of Congress early next year.