Major auto companies have been crowding forward this week to announce new investments that will create or keep jobs in the U.S. Does this signal a change in direction in response to the tweeted combination of threats and encouragement from Donald Trump?

Some industry analysts have a clear answer. “As with Ford, Fiat Chrysler and Toyota before, General Motors’ announcement of a $1 billion investment is mostly theater to play in the news cycle created by President-elect Trump’s tweets,” said Michelle Krebs, senior analyst for Autotrader. “These investments and hiring plans have long been in the works.”

But many Trump campaign promises -- if actually put into law -- could change the face of auto manufacturing in North America.

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