WASHINGTON (Reuters) - Leading members of President Bush's Republican Party on Sunday criticized mistakes and "incompetence" in his Iraq policy and called for an urgent ground offensive to retake insurgent sanctuaries.

In appearances on news talk shows, Republican senators also urged Bush to be more open with the American public after the disclosure of a classified CIA report that gave a gloomy outlook for Iraq and raised the possibility of civil war.

"The fact is, we're in deep trouble in Iraq ... and I think we're going to have to look at some recalibration of policy," Republican Sen. Chuck Hagel of Nebraska said on CBS's "Face the Nation."

"We made serious mistakes," said Sen. John McCain, an Arizona Republican who has campaigned at Bush's side this year after patching up a bitter rivalry.

McCain, speaking on "Fox News Sunday," cited as mistakes the toleration of looting after the successful U.S.-led invasion of Iraq in 2003 and failures to secure Iraq's borders or prevent insurgents from establishing strongholds within the country.

He said a ground offensive was urgently needed to retake areas held by insurgents, but a leading Democrat accused the administration of stalling for fear of hurting Bush's reelection chances.

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McCain said Bush had been "perhaps not as straight as maybe we'd like to see."

"I think the president is being clear. I would like to see him more clear," McCain said. He said Congress was expected to hold hearings on Iraq soon.

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Biden said disappointment with Bush's policies was bipartisan. "Dick Lugar, Joe Biden, Chuck Hagel, John McCain -- we are all on the same page. It is us and the administration. This has been incompetence so far," he said.