"There comes a point in every man's life when he has to say, 'Enough is enough.' For me, that time is now," Armstrong said. He called the USADA investigation an "unconstitutional witch hunt."
"I have been dealing with claims that I cheated and had an unfair advantage in winning my seven Tours since 1999," he said. "The toll this has taken on my family and my work for our foundation and on me leads me to where I am today — finished with this nonsense."
"There is zero physical evidence to support (the) outlandish and heinous claims," Armstrong said. "The only physical evidence here is the hundreds of (doping) controls I have passed with flying colors."
