Wow! That’s a high estimate :
The estimated number of undocumented immigrants is one of the highest ever.
The analysis by the Center for Immigration Studies  found that 45.3 million, or three-fourths of the 61 million, are legal immigrants and their children. The report out Monday notes that the so-called “Gang of Eight” immigration bill supported by GOP presidential candidate Sen. Marco Rubio would have doubled that number of legal immigrants.