The 20% Solution

It's quite simple, really. Twenty percent of the world's population causes eighty percent of the problems. Kill off those twenty percent, and you will have a wonderful world. And we all know who makes up that 20%. It's the people in jails, drug addicts, crackheads, homeless people, ghetto dwellers, welfare recipients, and so forth. Oh, there will be some collateral damage, but only a million people or so, but just think how great everything will be afterward.
Well, someone has decided to make this happen!
Scott Marklee receives a curious message on his cellphone: "The 20% solution has gotten out of control. The cabalists have betrayed my trust. The cabal won't listen to me now that I've finished my work. Meet me in Laughlin, Nevada. Don't bring anyone, or I won't show."
Scott ignored it until people around him turned up dead. As an investigative reporter, people called him with leads, but never like this. This was worse than 9/11. Millions of people were dying, and they weren't all evil. Many of the dead were innocent people, including his daughter and ex-wife.
The message leads Scott to who is responsible. But now, suddenly, he becomes their prime target, and they want him dead. Somehow, he must get from Laughlin, Nevada to Washington, DC, to meet with the Vice President of the United States and inform her of the facts. She is the only person he can trust. Even more critical, Scott carries knowledge of how the poison was made and the formula for the antidote. If the wrong people get this information, how many more innocent lives will be lost? He must get to the Vice President first.
They don't plan on letting that happen.