Trump hits 450-mile goal for 2020 border wall construction

President Trump fulfilled a promise to install 450 miles of border wall along the U.S.-Mexico boundary by the end of 2020, according to the country's top border official. 

Construction workers put up the 450th mile of fencing in the final days of December, acting U.S. Customs and Border Protection Commissioner Mark Morgan said in a private call with several reporters Tuesday morning. 

"Myself and the deputy commissioner, leaders here, we found out about it — we were briefed on Dec. 31 that we had actually reached the goal, and we had accomplished what we set out to accomplish," Morgan said.

"I remember every time that I said with confidence that I, without hesitation, that we were going to accomplish this goal by Dec. 31," Morgan said. "We were going to put 450 miles of steel and concrete along with all the essential attributes of the wall system Dec. 31. We were challenged, and a lot of people didn't think we're going to be able to do it. ... That is a remarkable achievement."