By Brandy McDonnellActress, recording artist and Oklahoma native Mary Millben is set to perform the national anthem for President Trump's official reelection campaign kickoff rally tonight at the Amway Center in Orlando, Florida. The rally is at capacity with more than 20,000 people expected in attendance inside the Amway Center, according to a news release.“To perform for the president of the United States of America is a great honor.Read more on NewsOK.com