Fields Statement:
"Campaign managers aren’t supposed to try to forcefully throw reporters to the ground, no matter the circumstance. But what made this especially jarring is that there was no hint Trump was done taking questions. No one was pushing him to get away. He seemed to have been happily answering queries from my fellow reporters just a moment before."
Terris, the reporter who is 'backing her up' said this:
"As security parted the masses to give him passage out of the chandelier-lit ballroom, Michelle Fields, a young reporter for Trump-friendly Breitbart News, pressed forward to ask the GOP front-runner a question. I watched as a man with short-cropped hair and a suit grabbed her arm and yanked her out of the way. He was Corey Lewandowski, Trump’s 41-year-old campaign manager."
Source: After an Alleged Assault, the Trump Campaign Launches a Vicious, Deceptive Attack on Michelle Fields
[forcefully throw reporters to the ground,]
Wow, that would take some force to throw someone clear through the floor into or onto the ground.