Carol Schwartz, 70, was a member of D.C. government for more than three decades before a primary defeat six years ago ended her Council career.
Schwartz has four prior unsuccessful mayoral bids under her belt.
Vihstadt is the first non-Democrat to be elected in 15 years.
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Airline passengers go through strict security screenings BEFORE heading to the gate, but what about AFTER? In an eye-opening I-team investigation, see how simple airport gift shop trinkets can be turned into bombs in minutes. Watch our I-Team investigation, "Bombs Beyond Security," MONDAY on ABC7 News at 11 after "Castle" at 10pm.