I commend President Obama for his leadership in immigration. The Justice Department has filed a lawsuit challenging the constitutionality of Arizona's anti-immigrant law, SB1070. The President is demonstrating his commitment to comprehensive immigration reform, one of our top priorities. His challenge of SB1070 is preventing a patchwork of immigration-related state laws that could lead to rampant racial profiling throughout our country, but that does little to fix our broken immigration system. The frustration of communities at the state and local levels shows the urgent need to fix this outdated system that keeps backlogs lengthy, families apart for years -- sometimes decades, and incentivizes undocumented immigration.