Video: Bill Walker, Byron Mallott make ticket for Alaska governor official

On Tuesday, independent candidate for Alaska governor Bill Walker and Democratic candidate Byron Mallott formally announced that they would join forces in a unity campaign for the state's top executive office, in an unusual and historic bid to unseat incumbent Republican Gov. Sean Parnell. News of the unity campaign came out on Labor Day, as the state's Democratic committee held a vote on whether to allow the move. Mallott, the party's choice for gubernatorial candidate will instead run for Lieutenant Governor, while Walker, a registered Republican, will drop that party's registration and become independent.