2020 Democrats face a choice: Fight Trump or ignore him?

SIOUX CITY, Iowa (AP) — When Sen. Elizabeth Warren took the stage earlier this month at this city's ornate Orpheum Theatre, Tricia Currans-Sheehan posed a pointed question to the expected presidential contender."Why did you undergo the DNA testing and give Donald Trump more fodder to be a bully?" the Iowa college professor asked, referring to a genetic analysis the Massachusetts Democrat released last fall to rebut President Donald Trump's repeated jabs about her Native American ancestry.W