>> Get them out. Troublemaker.>> Donald Trump Monday parting ways with his embattled campaign manager Corey Lewandowski. His departure so sudden, some among Trump's team were given no notice for what is so far the biggest upheaval among the campaign. Reuters Emily Flitter.>> For somebody like Trump, who has written again and again in his books that loyalty is the most important thing, this is huge.
Corey has been with Trump since the beginning, since before anyone took him seriously as a candidate. He traveled everywhere with Trump. And he really behaved more like a personal aide than a traditional campaign manager. He was there at every beck and call from Trump.>> Known for his brusque manner, Lewandowski was embroiled in controversy earlier this year when he allegedly grabbed the arm of Breitbart News reporter Michelle Fields at a Florida campaign event.
Field's later tweeting a photo of bruises she said she sustained as a result. Lewandowski was charged with misdemeanor battery but not prosecuted. His departure a coup for recent Trump hire Paul Manafort, a veteran republican strategist who Trump insiders see as Lewandowski's replacement. And backed by Trump's children, according to sources, who wanted to see Lewandowski go.
The move comes as the Trump campaign prepares for what could be a tumultuous GOP convention in Cleveland next month.>> You have corporate sponsors who sponsored the convention in past years refusing to do so this year. Trump is having to pick up a fundraising effort that almost has no energy because he wasn't doing any fundraising during the primaries and he didn't have an apparatus.
And he's trying to now work with different members of the Republican Party to really get a machine going that, in past election cycles, has been well-oiled and humming along by this point in the campaign.>> Trump's bumpy transition to the general election also showing up in poll numbers with the billionaire trailing his presumptive presidential opponent, Hillary Clinton.