Cuban-born trial lawyer Alejandro Mayorkas has been nominated to head the USCIS (Citizenship and Immigration Services). Unlike other Barack Obama nominees, he doesn't appear to have a paper trail of extremist statements and actions, although there might be something out there.

From his bio at OMelveny and Myers (omm.com/alejandromayorkas):

Alejandro Mayorkas is a litigation partner with extensive jury trial experience, having been before a jury in more than 30 cases in both federal and state courts. He handles complex civil and criminal matters, internal corporate investigations, and serves as national coordinating counsel for companies involved in related cases around the country... Mr. Mayorkas served as the United States Attorney for the Central District of California... President Clinton nominated Mr. Mayorkas in 1998... Prior to his appointment, he served as an Assistant United States Attorney for nine years... As U.S. Attorney, Mr. Mayorkas created the Civil Rights Section to prosecute hate crimes and other acts of intolerance and discrimination more effectively... his tenure as U.S. Attorney, Mr. Mayorkas served as Vice-Chair of the Attorney General's Advisory Subcommittee on Civil Rights and as a member of the Subcommittee on Ethics in Government... He serves on O'Melveny's Policy Committee and is the Chair of the Warren Christopher Scholarship Committee... Mr. Mayorkas also is the Chair of the Board of Bet Tzedek Legal Services

Extremist Chicanos probably aren't going to feel much affinity for him; the degree to which that will be reciprocated remains to be seen.