U.S. Sen. Lamar Alexander of Tennessee weighed in Friday on President Donald Trump declaration of a national emergency to build the southern border wall.

Alexander's statement reads:

“The president has made a strong case for increased border security, but declaring a national emergency is unnecessary, unwise and inconsistent with the U.S. Constitution. It is unnecessary because significant additional money already has been approved by Congress that he could spend on border security without declaring a national emergency. In fact, the president announced today that he would spend $3 billion of this additional funding to fund construction of the border wall. This $3 billion is in addition to the $22 billion Congress appropriated on Thursday for detention beds, technology, border patrol agents, ports of entry, replacing existing wall and 55 miles of new wall.

“It is unwise because if this president can declare a national emergency to build a wall, the next president can declare a national emergency to tear it down; or declare a climate change emergency to close coal plants and build wind turbines; or a health care emergency and force into Medicare the 180 million Americans with health insurance on the job.

“It is inconsistent with the U.S. Constitution because, after the American Revolution against a king, our founders chose not to create a chief executive with the power to tax the people and spend their money any way he chooses. The Constitution gives that authority exclusively to a Congress elected by the people.”

According to a news release from Alexander's office, he voted yesterday for legislation that Congress passed and the president will sign that made a “significant down payment on border security.” That new law included $22 billion for border security, which includes 55 new miles of physical barrier or wall on the southern border, an increase of 5,000 detention beds, funding for technology and more border agents and funding to secure the ports of entry, through which so much of the illegal drug traffic travels.

Junior U.S. Sen. Marsha Blackburn tweeted Tuesday, saying:

"We need to give border patrol officials the resources they need to secure our border."