Produce a long descriptive sentence that uses all these words: Rasmussen Reports DATE Mar 31, 2008; Hillary Clinton DEMOCRAT_% 36; Opinion polling by state for the United States presidential election, 2008 (Iowa); John McCain REPUBLICAN_% 51; POLL_SOURCE Rasmussen Reports; Rasmussen Reports REPUBLICAN John McCain; Rasmussen Reports DEMOCRAT Hillary Clinton; Rasmussen Reports SAMPLE_SIZE 500
Rasmussen Reports polled 500 people in Iowa on March 31, 2008 with 36% in favor of Hillary Clinton and 51% for John McCain.