Trio of Tennessee politicians jump on Trump train

Republican presidential candidate Donald Trump takes the stage during the final day of the Republican National Convention in Cleveland, Thursday, July 21, 2016. (AP Photo/Matt Rourke)

NASHVILLE - After Republican presidential nominee Donald Trump came under fire this week for controversial comments about NATO, U.S. Rep. Scott DesJarlais, R-Tenn., quickly rushed to his defense, saying, "It's expensive to police the world."

The move by the 4th Congressional District congressman is indicative of the support the South Pittsburg physician has given to the sometimes-brash billionaire and former reality star who accepted his party's nomination Thursday night.

photo Scott DesJarlais

DesJarlais got on the Trump train early this year and hasn't looked back.

In the latest instance, Trump told The New York Times he would ensure NATO member nations have "fulfilled their obligations to us" before he would move to protect them in the event of an attack.