(MSN) Its the subject of frequent barroom arguments online debates and even internal strategy sessions of congressional campaigns. As Warren rises to the top of the Democratic presidential primary its a question operatives from both parties are increasingly asking with more urgency. And the answers often surprise. The idea Elizabeth Warren is unelectable has followed her whole career" said Colin Reed a veteran GOP strategist who worked against Warren when she was a first-time Senate candidate in 2012. And she has overcome it each time.