action gives them a new security. >> we won't have to worry about driving on the street without a driver's license and police pulling us over. >> reporter: the president is also expanding his program to include protections for 200,000 more undocumented immigrants brought here illegally. republicans are livid. they say the president is going way beyond his powers. >> the president had said before he's not king and he's not an emperor. but he's sure acting like one. >> those who question my authority to make our immigration system work better, or question the wisdom of me acting where congress has failed, i have one answer, pass a bill. >> reporter: later today, president obama will sign these executive actions at a high school in vegas. the same place he launched a push for immigration reform nearly two years ago. >> karen, thank you very much. we turn to arizona at the center of the national debate over immigration. this morning, the governor, jan brewer, is slamming president obama for taking action which she says will only make the problem worse.