Zaun, 47, highlighted his experience as a legislator, small business owner and former mayor in his announcement speech.
Zaun cited a growing national deficit as one of his reasons for running and called what is going on in Washington dysfunctional.
"We need to fix this because what's going to happen is these young people here and all of us in this room are going to be paying for this irresponsibility that's going on in Washington, D.C.," Zaun said. "I truly believe that I can make a difference." [...]
Zaun said incumbents are vulnerable next year, something he said is evident the "tea party" movement and town hall meetings this summer.
"I think people are just saying they've had enough with the insiders and what's going on," Zaun said.
Speaking of insiders, Iowa Senate Republican leader Paul McKinley praised Zaun at today's event. I'll be interested to see who in the GOP establishment sides with Jim Gibbons in the primary to run against Boswell.