Sean Plankey’s nomination to lead the Cybersecurity and Infrastructure Security Agency looks to be over following his exclusion from a Senate vote Thursday to move forward on a panel of Trump administration picks. Multiple senators placed holds or threatened holds on his nomination, some related to cybersecurity. But the hold from Sen. Rick Scott, R-Fla., appeared to be the biggest hurdle. With Plankey’s exclusion from the resolution to advance a bevy of nominees that got a key vote Thursday,