LINCOLN, Neb. (CNN) -
It was sudden and vague.
Nebraska's lieutenant governor abruptly resigned this weekend.
The governor, in a rare weekend news conference used words like broken trust and betrayal.
"I've accepted his resignation and it is effective immediately," Governor Dave Heineman, (R) Nebraska said.
Saturday morning, Governor Dave Heineman, direct and deliberate, spoke about the lieutenant governor, a man who's been at his side for eight years.
"Um, I've got a knot in my stomach. I'm deeply disappointed. He's done a lot of good things for the state. But that trust was broken and he has resigned," Heineman said.
No specifics from the governor, but Heineman says Rick Sheehy, a front-runner for Nebraska's next governor, betrayed him.
"Late yesterday I became aware of new information regarding the Lieutenant Governor's personal decisions and subsequently had a conversation with him," Heineman said.
Rick Sheehy's resignation came after these phone records became public.
KETV Newswatch7's I-Team found hundreds and hundreds of late night phone calls Sheehy made.
They spoke with one of the women who said the conversations were often sexual.
When the "Omaha World Herald" questioned those calls, Sheehy submitted his resignation to the governor.
"I was very surprised. Like I say, I trusted him, and now obviously that trust was broken. I doubt he will continue his campaign for governor and no I would not support him under the circumstances," Heineman said.
Sheehy's state-issued phone has been disconnected and his Twitter account has disappeared.
Governor Heineman will start the search for a new second in command Monday.