NEW : Felipe Calderon says immigration is biggest challenge Arizona faces with Arizona Obama and Calderon criticize Mexico law . Drug violence , trade , renewable energy also among topics . The Arizona law , Obama asserted Wednesday , `` expresses some of the frustrations that the American people have had in not fixing a broken immigration system , and , frankly , the failures of the federal government to get this done . Immigration overshadows Monday 's state dinner , which will honor Pew Research Center Poll .
NEW : Felipe Calderon says immigration is biggest challenge Arizona faces with Arizona Obama and Calderon criticize Mexico law . Drug violence , trade , renewable energy also among topics . Immigration overshadows Monday 's state dinner , which will honor Pew Research Center Poll .