Sen. John McCain calls for NSA reform: "Is there anybody that believes this system is not broken in many respects?"

Candy Crowley asks Sen. John McCain about GOP perception problem over jobless benefits.

Senator John McCain talks with CNN's Gloria Borger about the GOP strategy during the federal government shutdown.

Sen. John McCain says a Ted Cruz presidential run in 2016 would be attractive to many voters.

McCain: can’t go at Obamacare “with a meat ax”

Responding to calls for the resignation of Health and Human Services Secretary Kathleen Sebelius, Senator John McCain said “let’s have Congressional hearings” over Obamacare’s failure to launch.

He called the Affordable Care Act a “fiasco.” Sebelius will not attend Congressional hearings scheduled to begin Thursday, but McCain said “let’s find out who is responsible.”

“This is just the beginning of the problems associated with a massive restructuring of one-fifth of our economy,” he said.

The White House announced that 475,000 have registered under the ACA, and McCain told CNN’s Gloria Borger on State of the Union that he was “glad they finally came through with some information.”

“It’s ridiculous and everybody knows that,” he said. But Republicans need to “rifle shot” Obamacare and stop going at it with a “meat ax,” said the Arizona Senator.