Trump faced criticism for his recent responses to questions about threats against Jewish community centers.
Trump earlier condemned anti-Semitism, saying it is "horrible and it's going to stop and it has to stop."
Trump brings his America First message to Boeing's South Carolina plant, threatening companies that consider moving jobs abroad.
The Trump family looks set to blow past the travel-related costs of the Obama administration.
Trump's visit comes two days after an attempt to unionize the Boeing plant fell far short.
Trump said he is considering Flynn's temporary replacement as well as three others for the post.
Trump said Republicans have to address Affordable Care Act repeal before tax reform.
Trump also denies that he told Flynn to discuss sanctions with a Russian official.
Trump started by announcing his Labor secretary choice before boasting about his first few weeks in office and attacking the media.