The National Republican Congressional Committee has put all three Iowa GOP Congressional challengers “on the radar,” the bottom rung of the three-tier Young Guns program. Challengers who appear better positioned to win may be bumped up later this year to “contender” or “young gun” status. Only the “young guns” are likely to get significant financial help from the NRCC.

If I were running Brad Zaun’s campaign, I’d start implementing “plan B,” assuming he’s on his own in his race against Representative Leonard Boswell. Iowa’s third district is rated “lean Democratic” by most analysts of the House races, while Iowa’s first and second districts are in the “safe Democratic” column. This spring the NRCC gave Zaun’s primary opponent Jim Gibbons “contender” status. Although the Iowa primary results were in a sense humiliating for the NRCC, I would have expected House Republican leaders to signal in some way that IA-03 (with a partisan voting index of D+1) is a more competitive district than IA-01 (D+5) or IA-02 (D+7). Instead, they give Zaun the same status as Bruce Braley’s challenger Ben Lange and Dave Loebsack’s repeat rival Mariannette Miller-Meeks.

Looking solely at fundraising numbers, which seems to be the NRCC’s main benchmark for candidates, Zaun belongs at the same level as Lange and Miller-Meeks. All three Republicans finished the second quarter with a little more than $100,000 cash on hand, and all face incumbents with much more money in the bank. Iowa politics-watchers generally consider Boswell more vulnerable than Loebsack or Braley, and on paper Zaun is a good candidate. He is an experienced campaigner and has a base in the population center of the district. However, it’s far from clear Zaun will have the resources he needs to be successful. Boswell’s campaign is about to hold its biggest fundraiser yet, featuring President Bill Clinton.

The tough reality for Zaun (and Lange and Miller-Meeks) is that the NRCC doesn’t have a bottomless pit of money to spend on every potentially competitive race. The latest FEC reports from party committees show the Democratic Congressional Campaign Committee with $33.8 million cash on hand compared to just $17 million for the NRCC. That’s not even enough to make a serious play in the 40 districts where Republican challengers already have full “young gun” status. Even worse for Iowa’s Republicans, the 14 candidates who got “contender” status this week are also ahead of Zaun, Lange and Miller-Meeks in line for help from the NRCC.

I doubt the NRCC will play much of a role in Iowa until 2012, when at least one of our four newly-drawn Congressional districts may be highly competitive.

Share any thoughts about Iowa’s U.S. House races in this thread.

UPDATE: Get a load of the ridiculous spin from Zaun: “The NRCC has identified our race as a top 30 race in the country.” Sorry, no: there are 40 candidates in the top tier, where the best pickup opportunities lie. Then come the “contenders” (second tier), and finally Zaun and the rest of the “on the radar” bunch.

THURDSAY UPDATE: Reid Wilson of Hotline on Call reports that the Democratic Congressional Campaign Committee is buying tv air time in 17 districts held by Democratic incumbents, including IA-03.