Gov. Timothy M. Kaine is hitting the road again to stump for Sen. Barack Obama.

Kaine will attend campaign events in Colorado and Arizona on Sunday, according to Charlie Kelly, executive director of Moving Virginia Forward, Kaine's political committee.

Kaine, a national co-chairman of the Democratic presidential candidate's campaign, was once a contender to be Obama's vice presidential nominee. He has campaigned for Obama at events in states such as Iowa, Texas and Georgia and has appeared with Obama during visits to Virginia. -- Olympia Meola