or talking about? our relationship with mexico is important. >> reporter: and nearly every president in the past has used their legal authority to issue these executive orders and legal experts that we spoke to today who specialize specifically in executive actions say that it does look as of now that these actions taken by trump are in his legal right from the ones that he has signed so far. but, wolf, it doesn't mean he won't be challenged later on down the line. wofld? >> sun land, thank you. reporting today from the white house. we're back with democratic senator robert menendez of new jersey. he's a member of the foreign relations committee. senator, what's your reaction to the president's call for a major investigation into what he regards as massive voter fraud? as you know, he told members of congress that maybe 3 to 5 million people voted illegally in the most recent presidential election and that's why he didn't win the popular vote because they voted for hillary clinton. what's your reaction to a full-scale investigation he is about to order? >> well, wolf, i think this is a