A nationwide movement to turn Hispanic immigrants into citizens and voters is focusing on Florida and four Southwestern states that may decide the 2008 presidential election. Hispanics make up a large share of the electorate in Florida, Colorado, Arizona, New Mexico and Nevada, and each of these states could swing either way in the presidential race. While New York and California are bound to cast their electoral votes for a Democrat and Texas almost certainly will vote Republican, Florida becomes the biggest swing state. The four smaller Southwest states have emerged as a battleground, partly because of a surge of...