Support for GOP presidential candidate Donald Trump continues to spike, causing the campaign to change venues for its Saturday event.

“Due to the overwhelming response for Saturday’s Rally in Phoenix, Arizona the venue has been changed to accommodate the thousands of people expected to attend and the event will now take place at the Phoenix Convention Center,” Trump’s press secretary Hope Hicks wrote in a press release.

Also due to Trump’s growing support, he’s formed a South Carolina Steering Committee.

In a press release Thursday, Trump’s campaign announced, “The rapidly growing list includes over 100 members from across the state and represents a cross-section of well-known fiscal and social conservatives.”

“Since Donald Trump announced that he is running for President we have been overwhelmed by the enthusiastic support. The campaign is off to a fast start and we couldn’t be more excited,” said State co-Chairman Ed McMullen. “Voters across South Carolina recognize that this country needs someone, like Donald Trump, who can Make America Great Again!”

“In response to the constant attacks and mischaracterizations by the liberal media and political insiders, grassroots support for Donald Trump has been increasing by the hour,” said State Director Jim Merrill. “When you threaten the Washington D.C. elite’s way of life they’re going to attack, but with Donald Trump’s leadership and the support of people across South Carolina and the country we can make Washington work for the people and not the other way around. Americans want the truth and Donald Trump is the only candidate with the guts to say it.”

Trump will visit the state later this month.

“This is just the first stage of building our statewide network and grassroots organization,” said Merrill. “We now have staff and contacts that are both geographically and ideologically dispersed throughout the state. Our goal is to build on that organization and re-define the political establishment in South Carolina in a manner that culminates with a victory in the Republican presidential primary.”

Also on Thursday, the Trump campaign announced three Iowa Co-Chairs: Colonel Brian Miller from Sioux City, Tana Goertz, and Richard “Dick” Thornton.

“I saw first hand what an effective leader he is,” stated Goertz. “He is decisive, honest, strong, and true to his words and that’s what I would want my next President to be.”

“After 50 years of being involved in the process, I find that Donald Trump brings a new perspective to the word leadership,” Thornton said. “I believe in the Donald Trump who believes in the ‘lead, follow or get out of the way’ mentality and this will bring success to not only Iowa but to the United States as well.”

Trump went to Iowa following his formal presidential announcement in June.

“I am proud that these individuals have decided to join the Team Trump,” said Trump. “These individuals work hard in their chosen professions and understand how hard it is in today’s world to have a positive impact. They bring to this campaign a wide-range of backgrounds that represent many Iowans. I know they will work hard and contribute to this campaign and our efforts to ‘Make America Great Again.”