July 8, 2008 (14 images)

Presumptive Republican presidential nominee Sen. John McCain, R-AZ, speaks to The League of United Latin American Citizens' (LULAC) 79th Annual National Convention and Exposition in Washington on July 8, 2008. (UPI Photo/Roger L. Wollenberg)

Democratic presidential candidate Sen. Barack Obama (D-IL) delivers remarks at the League of United Latin American Citizens' (LULAC) 79th Annual National Convention and Exposition in Washington on July 8, 2008. (UPI Photo/Kevin Dietsch)

Democratic presidential candidate Sen. Barack Obama (D-IL) makes his way onto the stage prior to delivering remarks at the League of United Latin American Citizens' (LULAC) 79th Annual National Convention and Exposition in Washington on July 8, 2008. (UPI Photo/Kevin Dietsch)

Democratic presidential candidate Sen. Barack Obama (D-IL) delivers remarks at the League of United Latin American Citizens' (LULAC) 79th Annual National Convention and Exposition in Washington on July 8, 2008. (UPI Photo/Kevin Dietsch)