There has been a tremendous amount of controversy surrounding President Barack Obama’s November 20 executive order concerning the implementation of the 1952 Immigration and Nationality Act (as amended).
The centerpiece of President Obama’s order is to prioritize the enforcement of the law and halt the deportation of close to five million undocumented aliens living in the United States. On balance, I believe President Obama acted within his authority. There is plenty of precedent for issuing executive orders, but it is by no means an open and shut case.
via Did President Obama act legally in issuing his executive order on immigration?.