This is not what he said.
we need to make sure that people get the training necessary to keep up with the nature of the jobs, as jobs change
As jobs requirements change, we all need to change to keep up with them or we will get left behind. This usually involves learning about some new technology, but it does not mean moving to a tech-job.
Look at the job market. I was out in it last year. There are millions of tech workers who are highly trained who simply cannot get jobs now, or are facing pay cuts in excess of fifty percent. And it's even worse for manufacturing workers - if they were to get training for technical jobs, they would graduate that training into the tech sector that is facing the greatest job loss. So training is NOT the answer. Doing something about H1-B and L1 visas, however, is a good start, as well as offering tax advantages to companies who keep jobs in this country - because it's better to the government to get less tax from an American job than it is to get NO tax on that job after it's gone elsewhere.