Regardless of if this was a political move, it was the right move and I'm glad he did it.
I agree it had to be done but it is temporary band-aid. In my opinion the people who were bought to the US illegally by their parents should pay back retro-active taxes that they might owe. You can't dodge taxes just because you were brought here illegally.
My band-aid theory goes further than paying back retro-active taxes. If you are here illegally and you came here say when you are 40(say in 2002) and are still at age 50 this year you should pay back retro active taxes, a fine(since you came here illegally), and know english. If you can't do any of these 3 things you should go back to your orginal country that you grew up in.