Report: Trump's Executive Order Could Allow Deportation of ALL Illegal Aliens

The nation's undocumented immigrants -- approximately 11 million by a 2014 Pew Research estimate -- could be made a priority for deportation as a result of the executive order signed by President Donald Trump Wednesday, according to legal experts.

The order delineates several categories of undocumented immigrants who are priority for removal from the United States including those who have been "charged with any criminal offense" or those who have "committed acts that constitute as a chargeable offense."

On the campaign trail, Trump has vacillated several times on the issue, at first indicating that all undocumented immigrants would be sent back" if they've done well they're going out and they're coming back in legally." Then he tempered his remarks to focus on undocumented immigrants who committed crimes.

But Trump's executive order appears to extend beyond this.

"Many aliens who illegally enter the United States and those who overstay or otherwise violate the terms of their visas present a significant threat to national security and public safety," the order states. "This is particularly so for aliens who engage in criminal conduct in the United States."

Anyone who came to the U.S. illegally -- that is without passing through border inspection committed a criminal misdemeanor and could fall into the priority removal category, legal experts tell ABC News.

While overstaying a visa is not a criminal offense, legal experts say that those who do so could fall under a vague clause in the executive order that undocumented immigrants who "have engaged in fraud or willful misrepresentation in connection with any official matter" are a priority for deportation as well.