PHOENIX -- Arizona State Treasurer Doug Ducey became an official candidate for governor on Wednesday.
Ducey founded the Cold Stone Creamery business before entering politics.
"I built a company. Now I want to shrink a government and grow an economy," Ducey said during his announcement in front of a large crowd of supporters at The Yard on 7th Street.
His speech focused on job creation, education and no taxation.
"We'll start by reducing the income tax with the goal of driving it all the way down to zero," said Ducey.
Ducey officially joins a crowded field of republicans for the nomination.
"For Arizona the Obama years have been nothing but mandates, lawsuits, and lectures and I don't know about you but I'm a little bit tired of it," said Ducey. "America needs to break out of Obamacare before Obamacare breaks America and Arizona can lead the way."
Obama's Affordable Care Act is widely opposed by Republicans and so is Gov. Brewer's recent expansion of Medicaid.
Ducey has already raised more than $1 million dollars through an exploratory committee giving him a lead over his competitors.
Former Mesa Mayor Scott Smith, Secretary of State Ken Bennett and former Maricopa County Attorney Andrew Thomas are also running in the Republican primary. Attorney Christine Jones and state Sen. Al Melvin are also GOP candidates.
Primary elections will be held Aug. 26. The general election is Nov. 4
Statement from Mayor Scott Smith:
"I would like to welcome Mr. Ducey into the race. Theodore Roosevelt once said, 'Rhetoric is a poor substitute for action, and we have trusted only to rhetoric. If we are really to be a great nation, we must not merely talk; we must act big.'
"If we are to be a great state, we must not merely accept talk. The difference between Mr. Ducey's and my track record could not be more clear. While his promises exist in a unproven, rhetorical realm, I have a proven track record of reducing the cost of government, eliminating burdensome regulations, and building an environment that has generated thousands of jobs and economic opportunities. I look forward to a lively discussion about the future of Arizona during this campaign."
The Associated Press contributed to this report