Pence on Thursday traveled to Miami for a conference covering issues affecting Central America.
A spokesman for Pence confirmed Cullen's hiring in an emailed statement, adding that the lawyer will assist Pence in "responding to inquiries by the special counsel".
That's according to a statement from Pence spokesman Jarrod Agen.
Jarrod Agen, a spokesman for the office of United States Vice President Mike Pence, confirmed to CNN Thursday that Pence has hired Richard Cullen, former attorney general of the state of Virginia, to represent his interests as they pertain to special prosecutor Robert Mueller's investigation into the Trump campaign's ties to Russian Federation.
An aide tells NPR the decision to hire an outside lawyer has been under consideration for weeks, and Pence chose to go forward with it earlier this week. Paul Trible, a member of the Senate committee that investigated the Iran-Contra scandal, and his work for Rep. M. Caldwell Butler, a key Republican vote on the House Judiciary Committee who voted in favor of impeaching Richard Nixon during Watergate.
Cullen also served as the attorney general of Virginia and as a US attorney under President George H.W. Bush.
President Donald Trump has been putting together his own team of outside lawyers to represent him through the Justice Department special counsel's investigation of Russian meddling in the 2016 election. Many expect Trump to roll back several policies and actions from former President Barack Obama done in an effort to help thaw relations between the two nations.
On Wednesday, it was reported that special counsel Robert Mueller is looking at whether the President attempted to obstruct justice.