2013 -
But some of his most fiery clashes came with a female official who ran one of the states under Lewandowskis control. The relationship ― and patience for Lewandowski within AFP ― reached a tipping point in October 2013. On the sidelines of a meeting of the groups board in Manhattan, Lewandowski loudly berated the employee for challenging his authority, getting in her personal space and calling her a c--- in front of a group of AFP employees, including some senior officials, according to three sources who either witnessed the exchange or dealt with its aftermath.
-- Politico
2014 - "most recent job with the Koch-funded Americans for Prosperity landed the group under investigation for voter suppression in North Carolina in 2014." ... "The voter registration effort that Lewandowski headed was shut down after the 2014 elections and Politico said he left the organization shortly thereafter as it became clear that Lewandowski didnt have much of a future with the group." -- Daily Beast
Lewandowski boasted about threatening to blow up the car of the organizations chief financial officer over a late expense reimbursement check during the 2012 election cycle, according to multiple sources who are familiar with his claim. (Lewandowski in an email denied this account.)
-- Politico
2015 -
Roger Stone, ... quit the campaign last year citing the candidates lewd attacks against another female journalist, Fox News anchor Megyn Kelly. Multiple insiders say they detected Lewandowskis fingerprints on the departures of Stone and another longtime Trump official, Sam Nunberg, asserting that Lewandowski seeks to shield Trump from receiving other advice.
2016 - In January after pulling Trump out of the debate Lewandowski threatens Kelly:
In a call on Saturday with a FOX News executive, Lewandowski stated that Megyn had a rough couple of days after that last debate and he would hate to have her go through that again. Lewandowski was warned not to level any more threats, but he continued to do so.
-- DailyWire
March 8, Lewandowski assaults reporter Michelle Fields.
And, separate from the incident with the Breitbart reporter Fields, other reporters who have covered the Trump campaign described instances in which Lewandowski was rough with journalists, using his body to push reporters away from the candidate. They described the former New Hampshire police officer as occasionally acting more like a security guard than a political operative.
-- Politico
Additionally, reporters told POLITICO that Lewandowski has made sexually suggestive and at times vulgar comments to ― and about ― female journalists who have covered Trumps presidential bid. One reporter who was on the receiving end of such comments described them as completely inappropriate in a professional setting. Lewandowski said in an email that hed never behaved inappropriately with female journalists.
-- Politico
Ref.
http://www.thedailybeast.com/articles/2016/03/16/the-shady-past-of-corey-lewandowski-donald-trump-s-campaign-manager.html
http://www.politico.com/story/2016/03/donald-trump-corey-lewandowski-220742
http://www.dailywire.com/news/4036/trumps-campaign-manager-thinks-violence-shouldnt-hank-berrien