Mitt Romney has started staffing up as he heads toward another presidential run. 

Romney has brought on Colin Reed, who was most recently Scott Brown's campaign manager in his Senate bid in New Hampshire, to work as a media liaison on a "voluntary basis," CNN reports

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Before the Brown campaign, Reed was deputy communications director for New Jersey Gov. Chris Christie (R), a potential primary rival to Romney. 

Reed also worked in Romney's gubernatorial press office in Massachusetts. "I got my start working for Mitt Romney when he was governor of Massachusetts, and I'm excited to be working with him again," Reed told CNN. "He's a great leader for our party, and he cares deeply about the future of America."

Romney's surprise announcement to a group of donors last week that he is seriously considering entering the race has led to a rapid escalation in his moves toward a campaign. He has been reaching out to former donors and staff to rebuild his organization. 

The first public comments by Romney since the campaign build-up began will come on Friday at the Republican National Committee meeting in San Diego, aboard the USS Midway aircraft carrier. 

Other likely Republican presidential contenders, including Wisconsin Gov. Scott Walker, Texas Gov. Rick Perry and neurosurgeon Ben Carson, are also slated to address the RNC meeting.