Iowa's governor says he wants to lead the Hawkeye state for another four years.
Governor Terry Branstad also says he is "energized" and ready to run for an unprecedented sixth term in office.
The Republican governor announced his bid for re-election Wednesday night before several hundred supporters at a conference center in West Des Moines.
He will embark on a statewide tour Thursday.
Branstad, 67, has been laying the groundwork for a race since last summer.
He announced last week that he had just over $4 million in his campaign account at the end of December.
During his annual "Condition of the State" speech Tuesday, he boasted about tax cuts, education investments and a decline in unemployment.
Longtime state Senator Jack Hatch , a Des Moines Democrat, is the leading candidate to oppose Branstad.