LOS ANGELES ( KTLA) -- The United States Postal Service spent $31.9 million sponsoring Lance Armstrongs team during the height of the riders Tour de France dominance, newly released records show.
Financial records obtained by ESPN through a Freedom of Information request revealed the previously undisclosed amount of Postal Service spending from 2001 to 2004, when the federal agency heavily promoted the rider.
Armstrong won the Tour each year from 1999 to 2005.
At the same time, the price of a First Class stamp went from .33 to .39 cents.
The sponsorship could also become an issue in either a federal investigation into doping in professional cycling, or a federal whistleblower lawsuit that disgraced cyclist Floyd Landis has reportedly filed against Armstrong.
Landis has claimed Armstrong among others used performance-enhancing drugs, which if found to be true would have been a violation of their agreement with the Postal Service.
Armstrong has repeatedly denied doping, and his attorneys have said there never was any wrongdoing regarding the USPS sponsorship.
USPS Spent Millions Sponsoring Lance Armstrong
The cost of sponsoring the Tour de France champion was nearly $32 million.
Lance Armstrong poster showing his USPS sponsorship logos.