What is the "America First" Movement?

I was speaking to one of the candidates for the US House of Representatives a few days ago and asked if he supported the America First movement. I asked because I’d heard his radio ad (very good ad) but didn’t hear any mention of the America First movement. Knowing the gentleman I was surprised. His answer was that he supported Trump. I had to scratch my head because Former President Trump is not the America First movement.

Since it appears that this could be a common misunderstanding I thought I would try to clear it up. Donald Trump did use the term throughout his campaign and term in office...