This has nothing to do with Secret Service Agents or Bodyguards. They saw no threat to Trump.....so they did nothing to Fields.
SS never touched her, zip/nada. It was all "campaign manager" Lewandowski.
Hes a campaign manager, and that includes being a body man. Its absolutely in his charter to control access, including by an assaulting reporter.
“SS never touched her, zip/nada. It was all “campaign manager” Lewandowski.”
Corey Lewandowski is responsible for remaining at Trump’s side and contribute to the protective cordon around Trump. Fields’ movement towards Trump from behind interfered with Corey’s movement as part of that security cordon, so Corey was fully justified in restraining her or anyone else interfering with his movements alongside Trump or approaching the Presidential candidate from the side or behind like that. Presumably the Secret Service bodyguards did not need to restrain her before Corey Lewandowski did so, because she interfered with Corey Lewandowski before getting close enough to the Secret Service agents to warrant their reactions.