WASHINGTON (Reuters) – A group of Senate Republicans on Wednesday endorsed expanding a $25 billion taxpayers assistance plan for U.S. airlines following warnings that carriers may be made to cut thousands of jobs without any government actions, according to a letter seen by Reuters. FILE PHOTO: An associate of a floor crew walks beyond American Airlines airplanes parked at the gate throughout the coronavirus disorder (COVID-19) outbreak at Ronald Reagan National Airport in Washington, U.S., April 5, 2020. REUTERS/Joshua Roberts/File PhotoAirline stocks moved sharply higher on the information, which was initially reported by Reuters. Stocks of American Airlines (AAL.O) closed up 9.5% while stocks of United Airlines (UAL.O) climbed 4.6% and Southwest Airlines (LUV.N) ended up 4.2%. The letter, spearheaded by Senator Cory Gardner and addressed into Senate Majority Leader Mitch McConnell and Senate Minority Leader Chuck Schumer and copied to Treasury Secretary Steve Mnuchin, was the initial public disclosure of substantial aid in the Republican-led Senate for additional emergency funding for U.S. airlines. A spokesman for McConnell declined to comment. Senators Marco Rubio, Roger Wicker, James Inhofe, James Risch, John Cornyn, Todd Young, Susan Collins, Martha McSally, Shelley Moore Capito and many others that signed the letter stated they backed a fresh six-month extension of their $25 billion citizenship support application “to avoid furloughs and further support those workers.” Following Reuters reported that the correspondence, Cornyn’s office published a copy of it declined to comment further. Airline unions and officials have been advocating U.S. lawmakers to expand new aid at the surface of the coronavirus epidemic’s devastating effect on airline journey. “With air travel anticipated to remain low in the near future, Congress should also consider provisions to support and provide flexibility for businesses across the aviation industry similarly impacted, such as airport concessionaires and aviation manufacturing,” the letter stated. About July 27, the vast majority of those Democratic-controlled U.S. House of Representatives signed a letter also calling for a full-scale expansion for its payroll aid program they assert is vital to maintaining hundreds of thousands of aviation employees engaged through March 31. This letter has been signed by 195 Democrats and 28 Republicans. Congress granted $25 billion in sales help to U.S. passenger drivers in March, combined with $4 billion for freight carriers and $3 billion for airport builders. The majority of the bailout funds don’t need to be repaid. Congress also declared a different $25 billion in cheap loans for passenger airlines; many airlines still haven’t exploited those loans. Airline executives believe optimistic Congress will behave, while chief executives and union leaders are calling lawmakers to push for extra help. Sara Nelson, global president of the Association of Flight Attendants-CWA, that represents almost 50,000 airport attendants in 19 airlines, stated the correspondence on Wednesday revealed “overwhelming bipartisan majority support” to get another $25 billion six-month extension of their payroll program. Airlines and unions have warned that mass layoffs could occur after the present $25 billion in support expires on Sept. 30, just more than a month ahead of the Nov. 3 U.S. elections. Between American Airlines and United Airlines, over 60,000 frontline employees have received warnings that their jobs are online. Reporting from David Shepardson; Editing by Diane Craft, Paul Simao and Jonathan OatisOur Standards:The Thomson Reuters Trust Principles.