Mitt Romney today made the following statement on Governor Rick Perry's announcement:
"Rick Perry ran a campaign based upon love of country and conservative principles. He has earned a place of prominence as a leader in our party and I salute him for his commitment to making President Obama a one-term president and finally getting our nation's economy back on the right track. The nation owes Governor Perry a debt of gratitude for his years of service to his state and country. I wish Anita and him well."
Source: http://www.mittromney.com/news/press/2012/01/mitt-romney-rick-perry-ran-campaign-based-upon-love-country-and-conservative-prin