In the wake of Michael Cohen’s guilty plea, federal prosecutors in Manhattan are investigating members of the Trump Organization to see if other employees violated campaign-finance rules, according to a source cited Friday by Bloomberg News. Bloomberg notes that Deputy U.S. Attorney Robert Khuzami seemed to signal this while announcing Cohen’s guilty plea last month, when he noted that ‘‘we will not fear prosecuting additional campaign finance cases,” but this is the first confirmation that they are actually doing so. Bloomberg’s source reports that Allen Weisselberg, the Trump Organization’s chief financial officer, will play a crucial role in the inquiry; the source added that he has already cooperated with federal prosecutors regarding Cohen’s crimes, albeit narrowly. It is unclear if Weisselberg is also a target of the investigation. Cohen, one of the most prominent members of team Trump to face criminal charges, could face five years in prison for tax evasion, bank fraud, and campaign finance violations.