I fully support this. And before you discredit it, keep in mind that the Obama administration sued companies for favoring foreigners over US workers. So, this is a bipartisan effort.
https://www.washingtonpost.com/politics/us-tells-companies-not-to-overlook-qualified-americans/2017/04/04/87fa4e06-1909-11e7-8598-9a99da559f9e_story.html?utm_term=.8057ca585100