It was just a few months ago when Transportation Security Administration (TSA) workers were granted the right to form a union following months of contentious debates in Congress.

The move paved the way for the largest federal labor election in U.S. history; balloting began in early March. But two amendments recently passed by the House of Representatives could undermine the efforts of more than 45,000 airports workers to organize as union run-off elections are set to conclude in the weeks ahead.

Last Thursday, the Republican-led House approved legislation that would eliminate collective bargaining and cut the TSA’s budget, which the unions and the federal agency say would cost thousands of jobs. The amendments were part of the 2012 homeland security budget bill for fiscal year 2012.

Rep. Todd Rokita’s (R-Ind.) amendment, which passed 218–205, prevents the use of federal funds for collective bargaining by the TSA workers, who provide security for the nations’s airports. Another measure cuts more than $270 million from the agency and was led by Rep. John L. Mica (R-Fla.), who is also House Chairman of the Transportation and Infrastructure Committee.

The timing of the bill coincided with a report released by Rep. Mica on Friday, which found that private screeners operate more efficiently and could save the government at least $1 billion over five years. A TSA spokesperson told the Washington Post that the 10 percent workforce reduction would cutabout 5,000 jobs.

In a statement, Rep. Rokita echoed similar sentiments, but went further by saying collective bargaining “would hamper the critical nature of TSA agents’ national security responsibilities.” He added that collective bargaining would make it difficult for people to settle disputes with the security workers.

The financial undercutting and rollback of union rights comes as the workers are currently voting to decide whether the National Treasury Employees Union (NTEU) or the American Federation of Government Employees (AFGE) will represent them.

In April, neither union received a majority vote, leading to a run-off election that will continue until June 21; ballot counting will occur two days later. The landmark voting came just two months after TSA administrator John Pistole allowed limited collectively bargaining rights for the first time in the agency’s ten-year history.

In spite of the election, both unions have separately called on their supporters to mobilize against the House bills. “AFGE will not allow these corporate, right-wing politicians to make being in a union un-American,” saidnational union president John Gage in a statement. “This amendment is nothing but a repeat of Wisconsin Governor Scott Walker’s unfounded attack on the right of all Americans to have a voice at work and the right to bargain collectively.”

The NTEU also appealed to some Senate members in hopes that the bill will not pass under the Democratic majority. President Colleen M. Kelley also called Rep. Mica’s study “partisan” and refuted the report. She writes:

In the wake of 9/11, Congress and the President determined, with wide public support, that airport security functions are better performed by federal employees. Not only does NTEU question the validity of the study, I believe the American traveling public would be loathe to return to the days [of] less than a decade ago, when low-paid, ill-trained employees of private contractors handled air passenger screening duties.

An updated study by the Government Accountability Office found that using private screeners would cost 3 percent more after an analysis of revised data from the TSA. A 2007 GAO study found that the costs were upwards of 17 percent. In January, Pistole suspended private screening programs because he did not find any “substantial advantages.”

This article originally appeared on the Working In These Times blog on June 8, 2011. Reprinted with permission.

About the Author: Akito Yoshikane is a freelance writer and reporter for Kyodo News. He regularly contributes to the In These Times blog covering labor and workplace issues. He lives in New York City.