Can't Trump da Trump.
Pff... Of course.
It would be American.
If Mexico can have a southern border, so can we!
The Great Wall was to keep the invaders in so they could get shrekt. Trump wants to keep them out. It's two entirely separate things fulfilling two separate purposes.
The only problem is that Trump's wall CAN'T be built.
The great wall stretches across most of China's former northern border. This is impossible to beat.