Photos from Today's Pro-Immigration Marches

What does it take to (finally) split the GOP? Hundreds of thousands of mostly Mexican families peacefully taking to the streets to demand basic human rights.

Immigration-rights demonstrators march through downtown Sacramento, Calif., as part of a nationwide rally, Monday, April 10, 2006. (AP Photo/Rich Pedroncelli)

Thousands of protesters rally for immigration reform along Broadway in New York, April 10, 2006. (Shannon Stapleton/Reuters)

Demonstrators cheer during an immigration rally before taking part in a march in San Francisco, Monday, April 10, 2006. Protesters across the country on Monday demanded reforms to legalize an estimated 11 million undocumented immigrants. (AP Photo/Eric Risberg)

Thousands of protesters rally for Immigration reform on the Washington Mall April 10, 2006. Up to half a million Hispanics and their supporters poured onto U.S. streets in the latest huge rally for immigrant rights as Democrats and Republicans remained divided over plans to overhaul immigration laws. (Jason Reed/Reuters)

Demonstrators march in a rally during the national day of action for U.S. immigration law reform in downtown Los Angeles, April 10, 2006. Tens of thousands of people rallied in U.S. cities from Boston to Phoenix on Monday, calling for dignity and rights for millions of illegal immigrants. (REUTERS/Lucy Nicholson)

Immigration reform demonstrators finish a march Monday, April 10, 2006, to the federal building in downtown Seattle. Hundreds of thousands of immigrants spilled into the streets in dozens of cities across the nation Monday in peaceful protests. (AP Photo/Elaine Thompson)