Michael Harrigan, a retired F.B.I. special agent, said the image captured by Doug Mills, a New York Times photographer, seems to show a bullet streaking past former President Donald J. Trump.
The ABC anchor, in a surreptitious recording, said, “I don’t think he can serve four more years.”
The political arms of five organizations are coordinating their efforts to mobilize Hispanic Democrats, saying that defeating the former president is their top goal.
The committee will decide whether to open a formal investigation into expense reports filed by the South Carolina Republican.