Four leading Democratic members of the U.S. House Judiciary Committee on Friday asked the new attorney general and Homeland Security secretary to investigate civil-rights complaints stemming from Maricopa County Sheriff Joe Arpaio's crackdowns on illegal immigration. The four lawmakers called on Attorney General Eric Holder and Homeland Security Secretary Janet Napolitano to investigate complaints that deputies used skin color as the basis to search for illegal immigrants. They also asked that a federal agreement allowing the Maricopa County Sheriff's Office to enforce immigration laws be terminated if any problems can't be fixed. The lawmakers are the highest-level officials, and the first under the new Obama administration and Democratic-controlled Congress, to make such a request. They are committee Chairman John Conyers Jr. of Michigan, Zoe Lofgren of California, Jerrold Nadler of New York and Robert Scott of Virginia 4 key Dems in Congress seek inquiry into Arpaio sweeps Democrats want the illegals here, even the criminal illegals..