Although Donald Trump may be the Republican frontrunner in the 2016 presidential race among right-wing voters, Wisconsin Gov. Scott Walker came out on top in a recent informal straw poll taken amongst wealthy conservative donors.

According to Politico, the Republican governor prevailed when major conservative donors were asked to clap for their favorite GOP presidential contender at a closed-door seminar in California sponsored by the billionaire Koch brothers last weekend. Sources say Walker received the loudest applause compared to the GOP candidates during a breakout session at the summit organized by pollster Frank Luntz.

Luntz did not formally track the results, but Politico sources said it was clear Walker received the loudest applause, followed by former Florida Gov. Jeb Bush and Florida Sen. Marco Rubio, who both received the about same amount. Former Hewlett-Packard CEO Carly Fiorina also received a fair amount of applause. However, most of the remaining candidates received only small applause, while no one clapped for South Carolina Sen. Lindsey Graham or former New York Gov. George Pataki.

Only about 100 of the 450 major conservative donors who attended the summit held at a luxury resort in Dana Point were present for the straw poll. It was not clear which donors were in the room at Luntz's session. The event was organized by Freedom Partners Chamber of Commerce, an organization partly funded by Charles and David Koch.

Other attendees at the donor summit included Walker, Bush, Fiorina, Rubio and Texas Sen. Ted Cruz.

Last week, a Quinnipiac University national poll revealed 20 percent of Republican and Republican-leaning voters said they would vote for Trump if the primary was held today. This marks the highest rate any single candidate has received in Quinnipiac's surveys within the past two years. Meanwhile, Gov. Walker comes in second place with 13 percent while former Florida Gov. Jeb Bush weighed in with 10 percent.