Governor of the state of Wisconsin, Scott Walker has announced his presidential bid on July 13, seeking nomination from the Republican Party.
Walker (47) tweeted "I'm in," joining 14 other Republican candidates for the 2016 election.
— Scott Walker (@ScottWalker) July 13, 2015
"I'm running for president to fight and win for the American people."
"In the Republican field, there are some who are good fighters, but they haven't won those battles. And there are others who've won elections, but haven't consistently taken on the big fights," he said in his official campaign video released on Monday.
"We showed you can do both. Now, I am running for President to fight and win for the American people," he added.
He will formally declare his presidential bid later at an event in Milwaukee.
The Wisconsin governor overcame a recall election in 2012 and fought with labour unions in his home state, and slashed taxes by $2 billion.
Walker managed to garner support from big businesses in Wisconsin, legalised carrying concealed weapons, brought in more restrictions for abortions, and obliged photo-id presence for voting.
Other front-runners for the US presidential bid from the Republican party include Jeb Bush, Marco Rubio, Rand Paul and from the Democrat party Hillary Clinton and Bernie Sanders are in the top tier.