In 2012, Obama won 49.5 percent of the vote, to Romney's 48.65 percent in the suburban district. That year, Paulsen won re-election with 58 percent of the vote.
Sund, a DFL activist who has worked in science-related jobs for big Minnesota businesses, said in a release: "I’m running for Congress because Minnesota’s families deserve a thriving economy that rewards hard work and innovation."
When she ran in 2012, local DFL activists picked Brian Barnes to run instead and she dropped out.
Paulsen has already built up a considerable war chest to fend off any challengers. According to his most recent campaign finance report, he had $1.7 million cash on hand.
Gov. Mark Dayton, speaking to a mostly Republican audience at the annual Minnesota Business Partnership dinner, repeated his familiar attack on the House GOP, blaming them for a legislative impasse on transportation.
A defensive Donald Trump gave Hillary Clinton plenty of fresh material for the next phase of her presidential campaign on Tuesday, choosing to publicly reopen and relitigate some her most damaging attacks.