Corey Lewandowski is an American political operative.
Political campaign staff are the people who formulate and implement the strategy needed to win an election.
Jupiter Police Release Video Showing Corey Lewandowski ... by The Alex Jones Channel
He is a political commentator at CNN and the former campaign manager of businessman Donald Trump's 2016 campaign for President of the United States from January 2015 to June 2016.
A campaign manager or campaign director is a paid or volunteer individual whose role is to coordinate a political campaign's operations such as fundraising, advertising, polling, getting out the vote, and other activities supporting the effort, directly.
Donald John Trump is an American businessman, television producer and politician, who is the Republican Party nominee for President of the United States in the 2016 election.
The Cable News Network is an American basic cable and satellite television channel that is owned by the Turner Broadcasting System division of Time Warner.
Corey Lewandowski debuts on CNN (Entire interview) by CNN
Prior to joining Trump's campaign, Lewandowski worked for several campaigns and was a lobbyist.
Lobbying is the act of attempting to influence decisions made by officials in a government, most often legislators or members of regulatory agencies.
He worked for Americans for Prosperity in a variety of roles, and led the group's national voter-registration effort for 11 months.
Americans for Prosperity, founded in 2004, is a conservative political advocacy group in the United States.
Lewandowski himself has run unsuccessfully for office twice, once in Massachusetts and once in New Hampshire.
New Hampshire is a state in the New England region of the northeastern United States.