Lance Armstrong — "I’M DONE!!" … After 500+ Negative Tests for Doping

Lance Armstrong is through defending himself against allegations he cheated to win his Tour de France titles … because he says he”s already given 500-600 samples that were ALL negative.

Armstrong, speaking on Gavin Newsom”s new late night talk show, says he”s not even arguing with people anymore who think he cheated — “I”m not wasting any more of my time talking about it and you shouldn”t waste your time talking about it. Let”s move on.” 

Although the World Anti-Doping agency is still dogging him … Armstrong believes most people already made up their minds about whether he was juicing during his string of 7 consecutive Tour de France victories.

Newsom”s new show premieres on Current this Friday night.