Rob Johnson, executive director of the Institute for New Economic Thinking, said it's "pathetic" what politicians have to do to stay in the U.S. Congress.
Johnson told HuffPost Live at Davos politicians can't gain wisdom from pandering for money, but it's necessary for them to keep their positions.
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"There are jerks and there are noble people in both parties, and yet it's tortuous to watch... what these people go through to try to survive," he said.
Below, more updates from the 2015 Davos Annual Meeting: