President Barack Obama's administration on Wednesday asked Republicans not to let themselves be influenced by ultraconservative groups of lawmakers who want to derail the immigration reform bill being worked on in the House of Representatives.

"It cannot be acceptable, broadly and in the long term, that immigration reform would be blocked because some minority of House Republicans is concerned about a primary challenge from the far right," White House spokesman Jay Carney said.

He said that the economic advantages of comprehensive immigration reform such as that supported by the bipartisan group of senators and approved by the upper chamber are clear, adding an additional 5.4 percent to U.S. GDP over the next 20 years and helping to reduce the deficit, according to a report presented Wednesday by the White House economic team.

"The benefits are clear. The fact that there is a broad bipartisan consensus behind this is clear," Carney said.

House Speaker John Boehner is meeting Wednesday with his fellow Republicans in the chamber to determine their strategy in the face of internal opposition by conservative legislators who want to prevent the possibility of establishing a route toward citizenship for the country's 11 million undocumented immigrants. EFE