CBS host Bob Schieffer's was driven nearly to a fit of giggles on Sunday after Sen. Ted Cruz (R-TX) repeatedly refused to take responsibility for last year's government shutdown.

The veteran newsman led off his Sunday interview by simply asking if Cruz would be willing to once again hold the government hostage to try to get concessions from President Barack Obama.

"Well, Bob, with all due respect, I don't agree with the premise of your question," Cruz replied. "Throughout the government shutdown, I opposed a government shutdown. I said we shouldn't shut the government down. I think it was a mistake that President Obama and the Democrats shut the government down this fall."

"The question I asked you was, would you ever conceive of trying to shut down the government again?" Schieffer pressed, clearly not buying in to the alternate reality.

"As I said, I didn't threaten to shut down the government the last time," Cruz insisted. "I don't think we should ever shut down the government. And I repeatedly voted..."

"Well," Schieffer interrupted, laughing out of frustration. "If you didn't threaten to shut down the government, who was it that did?"

"President Obama," Cruz said.

Schieffer dropped his head as the Republican senator's rant continued: "I understand the White House said over and over again that the shutdown is the Republicans' fault. And I understand that's what you're repeating. But the reality is, I voted over and over again to fund the federal government."

"Senator, I know what Republicans were telling me -- like [House Speaker] John Boehner -- that this was a disaster and never again," Schieffer shot back, frustrated but also clearly amused at the senator's talking points.