After weeks of dodging subpoenas from the New Jersey Legislature’s Special Investigative Committee it seems the principal actors in the Bridgegate saga will have to testify and disclose documents after all. ABC News has reported that a federal grand jury has been convened by the US Attorney from New Jersey, Paul Fishman, to investigate the involvement of Governor Chris Christie’s office in the George Washington Bridge scandal

The grand jury, which is set to sit for the next 18 months, has already begun hearing testimony from Christie Administration officials that have refused or not yet testified at the New Jersey’s legislature’s committee.

Twenty-three jurors convened in a federal courthouse in Newark today to hear testimony from a key staff member, Christie press secretary Mike Drewniak, whose lawyer, Anthony Iacullo, said Drewniak was not a target of the investigation…

ABC News has also learned from two officials briefed on the investigation that a team of state prosecutors — tapped by Christie’s own attorney general — are monitoring the federal case and are prepared to continue the investigation on the state level if the feds turn it over to them.

Governor Christie’s appointees and allies are anxious to get involved in the case, presumably to offer a questionable exoneration as already seen in Christie’s internal report. A report commissioned by Christie and written by Christie’s lawyers.

The grand jury is outside of Governor Christie’s control and has the power to criminally indict Christie himself.