SebastianJer 

The executive order will apply to illegal immigrants who came to the U.S. before they were 16 and are younger than 30. They also must have no major criminal offenses, have been in the country for at least five continuous years, have graduated from a U.S. high school or have earned a GED, or served in the military.
Individuals who have been convicted of a felony offense, a significant misdemeanor offense, or three or more other misdemeanor offenses not occurring on the same date and not arising out of the same act, omission, or scheme of misconduct are not eligible to be considered for deferred action under the new process.

“These are young people who study in our schools and play on our playgrounds,they are Americans in every single way but one – on paper.”

Imagine the precedent this claim would create. President Romney could lower tax rates simply by saying he will not use enforcement resources to prosecute anyone who refuses to pay capital-gains tax. He could repeal Obamacare simply by refusing to fine or prosecute anyone who violates it.

So what we have here is a president who is refusing to carry out federal law simply because he disagrees with Congress’s policy choices. That is an exercise of executive power that even the most stalwart defenders of an energetic executive — not to mention the Framers — cannot support.

In his conduct of the office of President of the United States, Richard M. Nixon, in violation of his constitutional oath faithfully to execute the office of President of the United States and, to the best of his ability, preserve, protect, and defend the Constitution of the United States, and in violation of his consitutional duty to take care that the laws be faithfully executed, has prevented, obstructed, and impeded the administration of justice....

“This notion that somehow I can just change the laws unilaterally is not true,The fact of the matter is there are laws on the books I have to enforcee. And there is a great disservice done to the cause of getting the DREAM Act passed and comprehensive immigration reform passed by perpetuating the notion that somehow by myself I can just go and do these things.”

WASHINGTON — In many ways, President Obama’s unilateral shift in immigration policy was a bluntly political move, a play for a key voting bloc in the states that will decide whether he gets another term. But as political moves go, it held the potential for considerable payoff.

"Beyond the pandering, beyond the politics, beyond the process is simple constitutional decency. This is out-and-out lawlessness. You had a clip of the president himself say months ago 'I cannot do this on my own because there are laws on the books.' Well, I have news for the president: The laws remain on the books, they haven't changed,"