WASHINGTON — Hispanic leaders in the House of Representatives called Tuesday for President Barack Obama Tuesday to act against Arizona's anti-illegal immigration legislation and to throw his weight behind a comprehensive immigration overhaul. Reps. Luis Gutierrez, D-Ill., and Raul Grijalva, D-Ariz., demanded a halt to the bill that passed Arizona's Senate Monday. The state's House of Representatives passed it last week. If Arizona Gov. Jan Brewer signs it into law, the bill would require immigrants to carry alien registration cards with them at all times and police to check people's immigration status whenever there's "reasonable suspicion" that they are in...