This is incredibly wrong and untrue. He promised a $2000 check to every American as a payoff from tariffs during election year and balance the budget at the same time. His chief economic advisor wrote a book on using tariffs to wage war on China and bring manufacturing to USA. He has talked about using tariffs as tool for decades. He just promises so many things, even contradictory things, that it might be hard to keep track of.

https://www.bbc.com/news/articles/c209x48ndjpo