Mitt Romney Campaign Buttons. Mitt Romney was the 2012 Republican Party Presidential nominee. Governor of Massachusetts from 2003 – 2007, Romney went on to lose the 2012 November general election to President Barack Obama. Also pictured are Mitt Romneycampaign buttons that feature his vice presidential running mate Wisconsin Congressman Paul Ryan who in October of 2015 became Speaker of the House. In 2018, Romney was elected to the United States Senate from Utah.