As the Democratic presidential nomination contest heads for a showdown in Texas and Ohio on March 4, Hispanics have emerged as a potentially pivotal constituency in the battle between Senators Hillary Clinton and Barack Obama. This report examines the turnout, demographic characteristics, opinions and voting patterns of the Hispanic electorate in Democratic primaries and caucuses held so far in 2008. Where possible, it draws comparisons and contrasts between Latino, black and white voting patterns. It also compares Latino turnout in 2008 with turnout in 2004. The report is based on an analysis of Super Tuesday exit polling data about Hispanics that the Pew Hispanic Center received on a contractual basis from Edison Media Research and Mitofsky International, the firm that conducts exit poll surveys for the National Election Pool, a national consortium of media organizations.