Politics, especially when it comes to environmental issues, often crosses political boundaries. Such was the case Sunday in Pendleton, Ore. At a rally there, Barack Obama was asked about his policy regarding the Hanford Nuclear Reservation cleanup. Obama was stumped.

"Here's something that you will rarely hear from a politician, and that is that I'm not familiar with the Hanford site, so I don't know exactly what's going on there," he answered. "Now, having said that, I promise you I'll learn about it by the time I leave here on the ride back to the airport."

His campaign later clarified the basic tenets of what his policy would be.

"Sen. Obama will reverse the Bush administration's budget cuts and ensure that the Hanford cleanup effort receives enough resources and support to protect area residents and businesses," spokesman Nick Shapiro told the AP.

But Obama's unfamiliarity with Hanford did not go unnoticed by Republicans, who said it was indicative of his political inexperience.

"This is just the latest example that Barack Obama is unprepared to be President," said Patrick Bell, Communications Director for the Washington State Republican Party.

Video of the question can be seen below.