Question: Nicola Dickson "Niki" Sauvage Tsongas is an American politician whose husband lost the 1992 Democratic presidential primary to who?
Sentence (from "Niki Tsongas"): Following John Kerry's appointment as Secretary of State, she was widely expected to run in the 2013 special election for the Senate seat once held by her husband; she put such speculations to rest when she announced her endorsement of Representative Ed Markey instead.
Relevant evidence: No