Executives from ten U.S. airlines and aviation companies are calling on Congress to end the government shutdown, which has already impacted passenger travel. A joint letter made public on Saturday stated: "Americans in your districts and states are tired of the long airport lines, travel delays, and flight cancellations caused by repeated government shutdowns. Yet again, air travel has become a political football in the latest shutdown." Signatories included the chief executive officers of Delta Air Lines, United Airlines, American Airlines, Alaska Airlines, Southwest Airlines, JetBlue, and United Parcel Service Inc. The letter noted: "TSA employees are working without pay. This is completely unacceptable. Without income, supporting a family, buying gas, and paying rent becomes extremely difficult, if not impossible." The executives also pointed out that the shutdown is placing immense pressure on unpaid Transportation Security Administration (TSA) workers during the busy spring travel season. They highlighted that this year's World Cup and the 250th anniversary of the United States are expected to bring a record 171 million travelers to the country. They stated: "It is long past time for the government to ensure that affected employees are paid." The executives further urged Congress to pass three bills that would guarantee pay for air traffic controllers and TSA employees, regardless of the government's funding status.