The support from former New York City Mayor Rudy Giuliani and other prominent Republicans put party faithful on the offensive and Wisniewski on the defensive as East Rutherford, N.J., hosted the first outdoor Super Bowl in a cold-weather city on Sunday.
Christie, who did not take questions at Super Bowl ceremonies and received a smattering of boos at an event in New York's Times Square on Saturday, was scheduled to appear on a radio call-in program Monday night. He and his family watched the game from a luxury box at MetLife Stadium.
Giuliani, who has been one of Christie's staunchest supporters, took aim at the credibility of Wildstein and Wisniewski during an appearance Sunday on CBS's "Face the Nation."
Giuliani described Wildstein as a person who "wants somebody else to pay his legal bills and he can't get them paid unless the governor is responsible."
He described Wisniewski, a Democrat, as a "guy who'd like to be governor."
The unannounced lane closures caused massive gridlock in the northern New Jersey town of Fort Lee in September, delaying emergency vehicles and school buses and tying up some commuters for hours over four mornings. New Jersey legislators are investigating whether Christie aides engineered the lane closures to send a message to the town's Democratic mayor. The U.S. attorney's office also is investigating.
Wisniewski also appeared on "Face the Nation" and defended his role and his previously stated doubts about what Christie knew and when.
"What I've said is I have skepticism about the governor's statement," he said. "I haven't said that the governor has responsibility for this. I haven't said that the governor knew when this was happening."
Mulvihill reported from Haddonfield, N.J.