Net Worth: $85.81 million
What do you get when you elect one of the co-founders of Nextel Communications to Congress? The fourth richest Congressional member, that's what. If you were a cell phone junkie in the '90s and early part of the 21st century, you remember Nextel phones. Although they had traditional wireless services, they had a "push to talk" feature that made them function much like a walkie-talkie. Not only did Warner make out well on the sale of Nextel, he continues to invest in tech firms. He has a stake in the Russian search engine, Yandex, worth about $6.75 million.