Corey Lewandowski is a political strategist and founder of Lewandowski Strategic Advisors, a firm that advises corporations on strategies concerning federal government relations. Lewandowski has also worked as a media commentator.
After serving as the campaign manager for a portion of Donald Trump's (R) presidential campaign, he worked as a commentator for CNN during the remainder of the presidential election. After the 2016 election, Lewandowski co-founded Avenue Strategies in December 2016; he left the group in May 2017 after scrutiny surrounding his connections to Trump.   
Prior to working with Trump, Lewandowski spent seven years with the nonprofit organization Americans for Prosperity.