It's looking like it, according to Rachel Maddow and the guy who broke the story in the first place last night:
Our guest tonight from the Virginian-Pilot, Julian Walker, broke the news last night that Virginia Democratic State Senator Phillip Puckett would be resigning his seat in the state Senate. Puckett’s resignation would hand control of that body to Virginia Republicans. With that control, the state GOP would be in a much stronger position to block Governor Terry McAuliffe from expanding Medicaid under the Affordable Care Act.
That was Julian Walker’s scoop.
Tonight, in his interview with Rachel, Walker broke news again when he said that according to one source the FBI has contacted the Virginia State Senate in regards to the resignation scandal.I can tell you that I did hear from one source that, one senate source that they did field a call from an FBI official today.
Video at the link. The plot thickens...