President Obama has deported nearly 400,000 people since he took office. Of that, only 200,000 are dangerous criminals. The President has explained that the reason he does not support issuing an executive order to defer the deportation of DREAM Act eligible individuals is because he believes that this would undermine the role of Congress.
However, the DREAM Act failed in Congress in December last year because of obstructive politics. Polls show that the majority of Americans support the DREAM Act, as well as a majority in the House of Representatives (which subsequently passed the bill). The bill had the majority vote in the Senate with 55, but failed to get 60 votes to avoid a Minority Republican filibuster. Five Democrats voted no, including Jon Tester of Montana.
Executive Order to defer deportations of DREAMers does not undermine democracy, it undermines the obstructive politics of Congress. President Obama has the power to do this. It is the power given to him by law as President.
The DREAM Act has a longshot's chance to pass in 2012 and if a vote isn't passed soon, then President Obama should absolutely use his Executive Order. Every moment he does not, more DREAMers are being shipped away to a country they know little to nothing about.