The results are transformational. With more technology, and fewer resources at many media companies, the balance of power between the White House and press has tipped unmistakably toward the government. This is an arguably dangerous development, and one that the Obama White House — fluent in digital media and no fan of the mainstream press — has exploited cleverly and ruthlessly. And future presidents from both parties will undoubtedly copy and expand on this approach.

“The balance of power used to be much more in favor of the mainstream press,” said Mike McCurry, who was press secretary to President Bill Clinton during the Monica Lewinsky scandal. Nowadays, he said, “The White House gets away with stuff I would never have dreamed of doing. When I talk to White House reporters now, they say it’s really tough to do business with people who don’t see the need to be cooperative.”

McCurry and his colleagues in the Clinton White House were hardly above putting their boss in front of gentle questions: Clinton and Vice President Al Gore often preferred the safety of “Larry King Live” to the rhetorical combat of the briefing room. But Obama and his aides have raised it to an art form: The president has shut down interviews with many of the White House reporters who know the most and ask the toughest questions. Instead, he spends way more time talking directly to voters via friendly shows and media personalities. Why bother with The New York Times beat reporter when Obama can go on “The View”?

At the same time, this White House has greatly curtailed impromptu moments where reporters can ask tough questions after a staged event — or snap a picture of the president that was not shot by government-paid photographers.