During the 2008 Presidential election, Miller endorsed Former New York City Mayor Rudy Giuliani for president. At the Michigan Republican convention, she explained, "When deciding what candidate I wanted to be our next President of the United States I knew we needed someone who would continue the fight against terrorism, who has proven leadership and who has the record and experience of managing government and improving the economy. Again and again on the most important issues facing America I came to the same conclusion, that former New York City Mayor Rudy Giuliani is the man we need to lead our nation."