GM announced they will invest $1 billion in U.S. factories, creating about 1,500 jobs. This comes just a couple weeks after Trump tweeted at GM threatening a "big border tax" if they move jobs out of the country. But GM said it was coming either way.

Sound familiar? Fiat Chrysler announced their own $1 billion investment in U.S. plants, and Ford invested in Michigan instead of Mexico after Trump tweets.

Trump's strategy: Trump told the WSJ there won't actually be a tax on companies because "they're not going to leave." When asked if he is micromanaging these manufacturers, he said, "I'm setting a tone for hundreds of companies."

Warning: Slapping a border tariff on companies that outsource could discourage them from new hiring in the U.S., and if they do keep their jobs in the U.S., automation would be more likely to cause unemployment than globalization.