Today U.S. Senator Joni Ernst became the third Iowa Republican heavyweight to endorse Representative Steve King, who faces a primary challenge from State Senator Rick Bertrand in Iowa’s fourth Congressional district. Ernst didn’t just allow King’s campaign to announce her support in a statement, she also filmed a short video which I’ve enclosed below, along with a transcript.

Birds can be heard singing in the background as Ernst praises King for supporting life, liberty, the military, four-laning U.S. Highway 20, and the fuel blender tax credit. The sound you can’t hear is the door slamming on Bertrand’s already slim chance to win this primary.

Ernst served with Bertrand in the Iowa Senate GOP caucus from 2011 through 2014, so has observed his political work more closely than most Republicans. She could have stayed neutral, though seven-term incumbent King was heavily favored to win the IA-04 primary even before Iowa Secretary of Agriculture Bill Northey and U.S. Senator Chuck Grassley publicly backed him.

As with Grassley’s endorsement, I wonder whether Ernst wanted to dish out some payback to Nick Ryan, the dark money operative who was recruiting a primary challenger in IA-04 and endorsed Bertrand immediately after the state senator made his campaign official.

Ryan worked for Mark Jacobs during his race against Ernst and others in the 2014 GOP primary for U.S. Senate. (Bruce Rastetter, a frequent ally of Ryan and major ethanol industry figure who is also supporting Bertrand against King, backed Ernst early in that race.)

Bertrand has been promoting himself as someone who will deliver for IA-04 in Congress, rather than trying to be a “national figure.” Last week, he asserted in an interview with the Des Moines Register’s William Petroski that there is widespread “discontentment” with King, who “has gone Washington.” Echoing that talking point, Ryan told Petroski, “I believe we can do better. I want a conservative congressman that cares more about getting things done for his district than booking an appearance on Fox or MSNBC.”

Ryan can raise a lot of money to spend on campaigns, but his track record in Iowa GOP contests is mixed. Unsuccessful candidates who benefited from spending controlled by Ryan include: Jim Gibbons in the 2010 primary for Iowa’s third Congressional district, Annette Sweeney in the 2012 primary for Iowa House district 50, Jacobs in the 2014 Senate primary, Matt Schultz in the 2014 primary for IA-03, and Mike Huckabee before the latest Iowa caucuses.

P.S.-Asked this morning whether he wants “to see King defeated” in June, Governor Terry Branstad replied, “It’s up to the voters to decide in each of these instances and I’ve always had confidence in the voters of Iowa to make a good decision and I will obviously support the Republican nominees,” O.Kay Henderson reported for Radio Iowa. Branstad made headlines by calling for Ted Cruz’s defeat less than two weeks before the Iowa caucuses. King was Cruz’s leading surrogate in Iowa after endorsing the Texas senator for president in November.

Kenneth P. Vogel reports new details at Politico today on how the billionaires David and Charles Koch provided indirect financial support to Joni Ernst’s 2014 campaign for U.S. Senate. Politico’s headline “How the Kochs created Joni Ernst” (changed after a few hours to “How the Kochs launched Joni Ernst”) overstates the case somewhat. Arguably, the dark money employed to attack Ernst’s main rival for the GOP Senate nomination would have been less effective if either 1) Mark Jacobs hadn’t chosen to live outside this state for 30 years. fatally wounding his candidacy in my opinion; or 2) the other Republicans in the race had raised enough money to become credible alternatives to Jacobs themselves.

Still, money funneled through the Kochs’ network was a big help to Ernst. We already knew that the Kochs invited her to their 2013 summer “seminar” a few weeks after she kicked off her Senate campaign. We already knew that in the summer of 2014, the Koch brothers front group Concerned Veterans for America kicked off what became a sustained attack on Bruce Braley’s Veterans Affairs Committee hearings attendance. Vogel has shown that Ernst got more assistance before winning the primary than was previously known.

I enclose below excerpts from Vogel’s article, but I recommend clicking through to read the whole piece. Vogel concentrates on the Trees of Liberty PAC, which raised funds through the Koch network and spent most of that money to air a tv ad attacking Jacobs. You can view that ad here. It masquerades as non-election communication by ending with the line, “Call Mark Jacobs. Tell him Iowa families can’t afford higher energy costs from Washington,” instead of urging viewers not to vote for Jacobs.

Vogel does not address the role of American Heartland PAC, a single-candidate super-PAC supporting Ernst. American Heartland PAC piled on with more tv ads targeting Jacobs less than a week after the Trees of Liberty statewide ad buy ended on May 2, 2014. The super-PAC did disclose its donors (longer list here). The largest contributors were Robert McNair, owner of the Houston Texans football team, and hedge fund operator Robert Mercer.

P.S.-It’s worth recalling on “Throwback Thursday” that Governor Terry Branstad helped launch Ernst when he picked the little-known Kim Reynolds as his running mate in 2010. Reynolds’ election as lieutenant governor that year opened up the Iowa Senate seat Ernst won two months later. If Branstad had chosen a different running mate, Reynolds would have stayed in the state legislature, and Ernst would likely still have been the Montgomery County auditor in 2013–not a promising springboard for a statewide candidate.

Earlier this year, I would have predicted high Republican turnout for Iowa’s June 3 primary elections. The five-way race for the U.S. Senate nomination was highly competitive, as was the six-way contest in the open third Congressional district. Multiple candidates contested GOP primaries in the first and second Congressional districts too. The 2012 Iowa Republican caucuses, which involved going out for an hour or more on a cold night in January, attracted a record turnout of roughly 122,000 people.

Yet according to unofficial results, just 158,031 Iowans cast ballots in the GOP primary for U.S. Senate, and 156,275 cast ballots in the governor’s race, where Terry Branstad had a token challenger.

The 2010 midterm election saw much higher Republican turnout, with some 227,404 people voting for one of the three GOP gubernatorial candidates. There weren’t any high-profile statewide Republican primary contests in 2006, but in the 2002 midterm year, 199,234 Iowans cast ballots in the three-way GOP primary for governor, and 197,096 Iowans cast ballots in the two-way GOP primary for U.S. Senate.

In IA-03, five of the six Republican candidates raised enough money to run district-wide campaigns before this year’s primary. Yet only 42,948 Iowans voted in a Congressional district with 160,660 active Republican voters as of June 2014. The seven-way 2010 GOP primary in IA-03 attracted more than 46,000 votes in a district that included only one-fifth of the state’s population at the time and 118,850 active Republican voters. (Iowa lost one of its Congressional districts after the 2010 census).

A similar story took shape in IA-02, where about 30,500 people cast ballots in this year’s GOP primary, compared to nearly 40,000 who voted in the 2010 primary, at a time when the district covered one-fifth of the state’s population rather than one-fourth.

In this thread, please share your thoughts on why Republicans didn’t show up to vote in larger numbers this year. Julie Stauch, a veteran of many Democratic campaigns, speculated that the low turnout “is the cumulative result of every extreme and outrageous statement over the last four years. The current Republicans in Iowa are only talking to those who agree with them 100 percent, which creates a rapidly shrinking base as every outrageous statement drives away a few more people. We can see the effect of this from the loss of 40 percent of the 2010 participants. That’s a serious decline over any range of time, but very bad over four years.”

I thought State Senator Joni Ernst would win the U.S. Senate primary outright, but I never thought she’d take more than 56 percent of the vote. A more detailed post on Mark Jacobs’ collapse will come later, but for now, here is my first take on the Ernst triumph.

Public Policy Polling released its latest Iowa survey yesterday; click here for the memo and here (pdf) for full results from the poll of 914 registered voters between May 15 and 19 (margin of error plus or minus 3.3 percent). Some highlights are after the jump.

Good news continues to pile up for State Senator Joni Ernst. After nabbing prized conservative endorsements from the U.S. Chamber of Commerce and the National Rifle Association, Ernst saw a new Loras College poll confirm that she is the front-runner in the five-way GOP primary for U.S. Senate. In mid-April, the inaugural Loras College poll found Ernst and Mark Jacobs essentially tied, but the new poll of 600 registered Republicansshows Ernst with 30.8 percent support to 19.3 percent for Jacobs, 9.5 percent for Sam Clovis, 7.3 percent for Matt Whitaker, and 2.3 percent for Scott Schaben. Even a small portion of the 29 percent undecided voters would push Ernst past the 35 percent threshold needed to win the primary outright. Full poll results are here (pdf); I’ve posted part of the polling memo below. I disagree with the methodological decision to include only registered Republicans in the poll sample, as a sizable number of Iowa no-party voters are likely to participate in the primary. On the other hand, it’s noteworthy that lists from which the poll sample was drawn “included only those who voted in the 2010 Republican primary or 2012 Republican primary.”

Hoping to blunt Ernst’s momentum, the Jacobs campaign rolled out its biggest endorsement yet last week, from Iowa Secretary of Agriculture Bill Northey. (Bleeding Heartland will cover that in more detail in a future post.) Ernst’s team was able to respond quickly with a press release hailing support from two past presidents of the Iowa Farm Bureau. I’ve posted that statement below.

Finally, the Sunday Des Moines Register endorsed Ernst yesterday. Although the Register’s editorial board disagrees with most of the policy stands they mentioned in the endorsement (such as repealing Obamacare, “absolutist position on the Second Amendment”), they appreciated Ernst’s “nuanced grasp of details” on several issues. More important, I suspect, the Register’s editors were motivated to pick the candidate they view as likely to win the primary. The commentary cited her “impressive statewide political campaign,” which has attracted “support from many establishment Republicans.” More excerpts are below.