With less than two weeks remaining before June 3, interest groups with a preference in competitive primaries have presumably made their views known by now. On the Democratic side, labor unions are most likely to get involved in primaries, so I wanted to compile in one place the full list of candidates in competitive Democratic races who have been endorsed by one or more organized labor group. None of the Democrats seeking statewide office in Iowa this year has a primary opponent, and I’ve omitted county-level races. The list below includes candidates running for Congress in the first district and seeking various Iowa House and Senate seats.

I will update this post as needed if I learn of other labor union endorsements. Note that many other Democratic candidates already have or will have organized labor’s official support for the general election campaign. Blog for Iowa posted all of the Iowa Federation of Labor AFL-CIO’s endorsements for 2014 here. A complete list of candidates who will appear on primary ballots is on this page of the Iowa Secretary of State’s website.

The Daily Kos Elections team has been compiling 2012 presidential election results by state legislative district as well as by Congressional district. Yesterday the Iowa numbers were added to the database. You can view Google documents with raw vote totals and percentages for Barack Obama and Mitt Romney by Iowa Congressional district here, by Iowa Senate district here, and by Iowa House district here.

Looking closely at the presidential vote in the legislative districts provides some insight about where the competitive Iowa statehouse races might be next year. After the jump I’ve highlighted some key data points related to the Iowa Senate races. Later I will post a separate diary with first thoughts about the Iowa House districts.