Mr. Obama has repeatedly repudiated the Bush administration; in the interviews, Mr. Cheney has hit back. Speaking to Politico in February, he warned of a “high probability” of another terrorist attack. On CNN, he suggested that Mr. Obama was using the economic crisis to justify a big expansion of government. On Fox, he agreed when Mr. Hannity asked if Mr. Obama was “telegraphing weakness.”

To Democrats, Mr. Cheney is the perfect person to remind the nation of all the reasons Republicans were turned out of office. “I think the country has rendered a pretty clear verdict last fall on Cheney and Cheneyism,” said Mr. Obama’s senior adviser, David Axelrod.

Even some Republicans say they wish the former vice president would disappear. Among them is Meghan McCain, the daughter of the Republicans’ 2008 presidential nominee, Senator John McCain, who appeared Thursday on the ABC show “The View.”

“You had your eight years,” Ms. McCain declared. “Go away.”

Other former vice presidents have kept a much lower profile, at least this early after leaving office. Al Gore was supportive of Mr. Bush after the Sept. 11, 2001, attacks, but in September 2002 delivered a speech critical of Mr. Bush’s plans for the Iraq war. After John F. Kennedy bungled the Bay of Pigs invasion in April 1961, Richard M. Nixon, the former vice president who lost to Mr. Kennedy, visited the new president at the White House and said the nation should support him.

But some conservatives, feeling beleaguered these days, are grateful that Mr. Cheney is speaking out. John R. Bolton, a former ambassador to the United Nations and a close ally of his, said that after having to hew publicly to Mr. Bush’s views, Mr. Cheney might be feeling liberated. “It’s about time he had a chance to get his voice back,” Mr. Bolton said. “There’s no cone of silence now.”

For its part, the Obama White House is trying to figure out just how to handle the lifting of the cone. After the former vice president appeared on CNN last month, the White House press secretary, Robert Gibbs, was dismissive, declaring, “I guess Rush Limbaugh was busy, so they trotted out the next most popular member of the Republican cabal.”

But now Mr. Cheney is gaining some traction with his argument that the Obama White House, which prides itself on transparency, should declassify the memorandums he is seeking. Mr. Gibbs faced a string of questions Thursday about whether Mr. Obama had read them (he said he did not know), and Mr. Axelrod said the White House would consider declassifying them after intelligence and national security agencies had weighed in.

As for Mr. Cheney, he does not have any more interviews scheduled, although his daughter said he was flooded with requests. Aside from working on his book, he has been meeting with foreign dignitaries, hosting policy luncheons around his kitchen table (it seats 10) and spending a fair amount of time at his other homes, in Wyoming and on the Eastern Shore of Maryland. He will be making a speech in New York soon, his daughter said, and he has a couple of fishing trips planned for May.