DES MOINES — Iowa Secretary of State Paul Pate is encouraging all Iowa high schools to participate in a statewide effort to register students to vote. Each school that registers at least 90% of their eligible students to vote will receive the Carrie Chapman Catt Award, named after the Iowan who was a national leader in the women’s suffrage movement. Pate made the announcement of this year’s registration drive on Tuesday, Sept. 20, which coincides with National Voter Registration Day.