Claire McCaskill is a former Democratic US Senator from Missouri and a current NBC and MSNBC political analyst. During her two terms in the Senate, McCaskill earned a reputation as a plain-spoken, no-nonsense moderate, unafraid of unscripted conversations with the press. McCaskill established a long track record of rooting out waste, fraud, and abuse of power in government. When she left the Senate earlier this year, McCaskill was the top-ranking Democrat on the Homeland Security Committee and a senior member of the Armed Services Committee.