Energy Secretary Steven Chu has just about had it with House Republican accusations about Solyndra and other clean-energy companies that won billions of dollars in federal loan guarantees.

“After hundreds of thousands of pages of documents sent over, there’s not any whiff that this was a politically influenced decision,” Chu told reporters Tuesday shortly after wrapping up House committee testimony on the controversial program. “That’s true of all the loans.”

Chu’s frustration was apparent after spending more than two hours before the Oversight and Government Reform Committee answering pointed GOP questions concerning his handling of more than $14.5 billion in stimulus-funded loan guarantees.