Washington ? The House renewed the USA Patriot Act in a cliffhanger vote Tuesday night, extending a centerpiece of the war on terrorism at President Bush’s urging after months of political combat over the balance between privacy rights and the pursuit of potential terrorists.

Bush, forced by filibuster to accept new curbs on law enforcement investigations, is expected to sign the legislation before 16 provisions of the 2001 law expire Friday.

The vote was 280-138, just two more than needed under special rules that required a two-thirds majority. The close vote caught senior Republican aides in both chambers by surprise. Sen. John Sununu, R-N.H., the sponsor of the new civil liberties protections, worked the House floor as representatives cast their votes.

Nonetheless, the vote marked a political victory for Bush and will allow congressional Republicans facing midterm elections this year to continue touting a tough-on-terror stance. Bush’s approval ratings have suffered in recent months after revelations that he had authorized secret, warrantless wiretapping of Americans.

That issue helped fuel a two-month Senate filibuster that forced the White House to accept some new restrictions on information gathered in terrorism probes.

Republicans on Tuesday declared the legislative war won, saying the renewal of the act’s 16 provisions along with new curbs on government investigatory power will help law enforcement prevent terrorists from striking.

“Intense congressional and public scrutiny has not produced a single substantiated claim that the Patriot Act has been misused to violate Americans’ civil liberties,” said House Judiciary Committee Chairman James Sensenbrenner, R-Wis. “Opponents of the legislation have relied upon exaggeration and hyperbole to distort a demonstrated record of accomplishment and success.”

But the debate over the balance between a strong war against terrorists and civil liberties protections is far from over.

The Senate Judiciary Committee is holding hearings on the domestic wiretapping program. Additionally, Chairman Arlen Specter, R-Pa., the chief author of the Patriot Act renewal, has introduced a measure “to provide extra protections that better comport with my sensitivity of civil rights.”

Despite its passage, the Patriot Act still has staunch congressional opponents who protested it by voting “no” even on the part of the bill that would add more civil rights protections. During the Senate’s final debate last week, Sen. Russell Feingold, D-Wis., said he was voting “no” because the new protections for Americans were so modest they were almost meaningless.

Such objections echoed during the House debate Tuesday, where the measure was supported by 214 Republicans and 66 Democrats and opposed by 13 Republicans, 124 Democrats and one Independent.