FILE - In this Nov. 6, 2003, file photo then-U.S. Sen. Barack Obama, D-Chicago, argues during a debate on legislation about immigrant driver's licenses on the Senate floor at the Illino

 

              FILE - In this Nov. 6, 2003, file photo then-U.S. Sen. Barack Obama, D-Chicago, argues during a debate on legislation about immigrant driver
FILE - In this Nov. 6, 2003, file photo then-U.S. Sen. Barack Obama, D-Chicago, argues during a debate on legislation about immigrant driver's licenses on the Senate floor at the Illinois State Capitol in Springfield, Ill. More than a decade after he helped pass unprecedented racial profiling legislation in Illinois, President Barack Obama efforts as a young state lawmaker offer some of the clearest clues as to how America’s first black president feels about an issue that’s polarizing a nation roiled by the shooting death of black teenager Trayvon Martin. (AP Photo/Seth Perlman, File)