It's hard for me to believe that I almost forgot this one. Mark Kirk claimed he could have single-handedly prevented the war in Kosovo with $2 million dollars. The above video shows Kirk's claim and explains the longstanding and complex issues that led to the war in Kosovo proving that Kirk's claim was beyond ridiculous.
You can also find the video here.
As I recall Kirk's republican party did not like Clinton going into Kosovo and always joked that it was the "wag the dog" war to bury the Monica Lewinsky story. Far from it, the problems in Kosovo were longstanding and the issues were many, not to mention the atrocities against Kosovar Albanians. If it were only true that someone could have stopped the war with $2 million the world would have been better off, but it was only the delusion of what now appears to be a liar of epic proportions.