VIDEO: Trump pushes aside prime minister

Some video of President Donald Trump at the NATO summit in Belgium is raising eyebrows for his eagerness to get in front of cameras.

The video shows Trump and other leaders of NATO nations walking inside the alliance's new headquarters in Brussels. The president comes up behind Prime Minister Dusko Markovic of Montenegro and pushes him aside so he could get to the front of the group.

In the video, Markovic appears a little startled but then smiles as Trump passes him.

Trump then adjusts his jacket.  

This was the U.S. president's first meeting with the leaders of the alliance.

Montenegro is scheduled to formally become NATO's 29th member in early June.