WASHINGTON -- In close co-operation with U.S. President Barack Obama, House Republicans worked to revive the administration's trade agenda on Thursday, nearly a week after it was left for dead by rebellious Democrats backed by organized labour.

Legislation to strengthen Obama's hand in trade talks is part of "expanding our influence in a critical part of the world," Rep. George Holding, R-N.C., said as in advance of a re-vote on a measure the administration seeks to facilitate a 12-nation deal involving Japan and 11 other countries bordering the Pacific Ocean.

Democrats fought the measure, as they have for months, for fear it would lead to the loss of U.S. jobs overseas. "Let's kill this donkey once and for all," said Rep. Donna Edwards, D-Md.

Despite opposition from labour-backed lawmakers, the measure easily cleared a preliminary hurdle, 244-181.

The House debate and vote marked the beginning of an extraordinary rescue operation that the White House and GOP leaders in Congress hope will result in passage of a pair of bills by the end of next week.

The measure on the House floor would give Obama authority to negotiate global trade deals that Congress can approve or reject, but not change. Other recent presidents have had the same prerogative Obama seeks, known as "fast-track."

Separately, a bill to renew an expiring program of aid for workers who lose their jobs because of imports will move quickly.

"We are committed to ensuring both ... get votes in the House and Senate and are sent to the president for signature," House Speaker John Boehner and Senate Majority Leader Mitch McConnell said in a joint statement issued Wednesday in an attempt to reassure pro-trade Democrats whose votes will be needed.

At the White House, Obama met separately with Democrats lawmakers inclined to support the legislation.

House Democratic Leader Nancy Pelosi had no comment on the day's events. The California Democrat joined the revolt last week in which her party's rank-and-file lawmakers helped vote down the aid package that they customarily support, calculating their actions would prevent the entire trade package from reaching Obama's desk.

Supporters of the president's agenda argue that the United States must stay involved in international trade, in part because otherwise, countries like China will write the rules to their own advantage. The administration's immediate negotiating objective is a round of talks involving 12 countries in Asia, North America and South America.

Organized labour and other opponents of international trade deals say they cost thousands of American workers their jobs by shifting employment to foreign countries with low wages, poor working conditions and lax environmental standards.

Officials in Congress said Boehner and McConnell hope to have both the trade and the aid legislation to the president by the time lawmakers begin a scheduled vacation at the end of next week.

Obama has not spoken in public in the past two days about the attempt to resurrect his trade bills, nor have White House officials disclosed many details of his role in putting together the rescue attempt. McConnell and Boehner both said on Tuesday that they had spoken with the president on the phone, but they offered little by way of details.

White House spokesman Josh Earnest told reporters at the White House on Wednesday that "The only legislative strategy that the president can support is one that will result in both pieces of legislation arriving at his desk."

Earnest also predicted that all of the 28 pro-trade House Democrats would be willing to follow the rescue strategy, as long as the aid package makes it to the White House after it is separated from the trade measure.

One of the lawmakers, Rep. Gerald Connolly of Virginia, concurred.

"My sense is that there aren't going to be a lot of cracks in the 28 who voted yes last time," he said.

Some congressional Democrats said they wanted the president to sign both bills at the same time.

Earnest didn't pledge that, saying, "There's also this fundamental question ... about whether or not they have to arrive at the same time, on the same day, as part of the same legislative vehicle or separately, that's exactly what's being discussed on Capitol Hill."

AP reporter Jim Kuhnhenn contributed to this story.