Brownback is set for a busy bus tour of Iowa.
WASHINGTON (CNN) - Kansas Sen. Sam Brownback announced Monday he'll visit 27 Iowa towns in four days later this month on a bus tour the campaign is calling "Parker to Ames, Farmer to President."
"My road to the White House began in Parker, Kansas, where I grew up on a farm, and now takes me through Iowa," the GOP presidential hopeful said in a statement. "It was growing up in the Heartland that I learned the conservative values and principles that will guide me as president.
"I am thrilled to meet with families, business owners, senior citizens and the hardworking people of the Hawkeye State," he added.
The bus tour is set to run from June 18-21.
The announcement comes days after Brownback vowed to go "head to head" with fellow Republican presidential hopeful Mitt Romney in the state's straw poll this August, and criticized the former Massachusetts Republican for declaring himself the winner of the event "before the game is played."
The straw poll, sponsored by the state Republican party and set to be held in Ames, Iowa, on August 11, has traditionally been seen as a barometer of a candidate’s organizational strength in the early-voting state. Earlier last week both former New York City Mayor Rudy Giuliani and Arizona Sen. John McCain announced they would not participate in the event.
- CNN Ticker Producer Alexander Mooney