David Correia and Andrey Kukushkin, the co-defendants charged alongside two foreign-born associates of Rudy Giuliani in a scheme to violate American campaign-finance laws, pleaded not guilty Thursday in Manhattan federal court.

Both men were charged last week on on -count of conspiracy in a four-count indictment linked to Lev Parnas and Igor Fruman, who prosecutors said conspired to funnel foreign money into U.S. elections in order to buy influence among lawmakers in state and federal governments.