The Washington Post is reporting that State Rep. Josh Turek, a favored candidate of the Democratic establishment, has won the Senate primary in Iowa. It said Turek defeated progressive opponent Zach Wahls, a state senator who had challenged party leadership in Washington. The Iowa race marks the first of three Democratic Senate primaries, with Michigan and Minnesota to follow, that will assess the willingness of Democratic voters to support candidates who are skeptical of a more moderate party message.