A member of the Queensland Young Liberal National Party has been expelled after he called Barack Obama a monkey on a social networking site.

Nick Sowden last night posted messages on Twitter while the US President was being interviewed by Kerry O'Brien on the ABC's 7.30 Report.

"I'm not sure why they paid kerry to fly to america, if they wanted an interview with a monkey surely a Ferry to Taronga would have sufficed," one tweet said.

"If I wanted to see a monkey on TV id watch Wildlife Rescue," said a second.