Obama dislikes the mainstream media.

Politics: The hell?

Barack Obama used his first news conference after announcing his run for president to accuse the media of ignoring his substantive record and falsely depicting him as a lightweight. "The problem's not that the info's not out there," he said of his record on policy issues. "The problem is that that's not what you guys have been reporting on. You've been reporting on how I look in a swimsuit." Obama's peevish comment reflected an ambivalent relationship with the national media, rooted in his transformation from an obscure Chicago politician into a bona fide celebrity over just 2 1/2 years. Obama has been the subject of almost entirely favorable coverage from the national media, and his aides acknowledge that he's parlayed that new profile into his presidential campaign. But Obama also espouses a new brand of politics aimed at transcending the celebrity obsessions and superficiality promoted by modern 24-hour news cycles.

The info is not out there? AP wrote about his liberal record that was widely distributed.

AP: Obama's Past Offers Ammo for Critics.

Lee News: Barack Obama has built a solid liberal record

As for his noise about the press, what he has done in his short time at the Senate is piggyback on other people's ideas or existing programs.

Obama has served in the United States Senate for two years. Combined with his eight years in the Illinois State Senate, he has spent more time in elective office than his leading democratic rivals. In his short time in Washington, he hasn't sponsored any legislation that would affect the way Americans live their daily lives – but few first-term senators, and few of his rivals for the presidency, can claim otherwise. In the Illinois legislature, he spent most of his time in the minority, but played a role in crafting legislation on the death penalty and on ethics. Now, he is at pains to buff his record in the U.S. Senate. He dwelled in his announcement speech on his accomplishments in Washington – notably work on securing Russian nuclear material and tightening congressional ethics.

The nuke issue is a continution of an existing bill started by Senator Lugar.

May 2006 – Lugar’s newest program, the Lugar-Obama Act, heads to the Senate floor. The act is “modeled after the Nunn-Lugar program that focuses on weapons of mass destruction in the former Soviet Union,” and was created with the cooperation of Senator Barack Obama. The Lugar-Obama Act will “expand the cooperative threat reduction concept to conventional weapons,” and also grant the State Department more “ability to detect and interdict weapons and materials of mass destruction.” – Congressional Press Releases

It passed the Senate later that month, it looks nice on a resume but in reality, nothing changes.

Back to his complaining about the press, they are not too happy about it and shocked their creation would turn on them.

The cliché that "you don't pick fights with people who buy ink by the barrel" has been losing much of its relevance at least since Bill Clinton's presidency. President Bush and his aides prospered politically, at least for a time, by attacking what they called the biased "filter" of the Washington- and New York-based newspapers and television networks. Political figures on the left and the right, and their Internet allies, now compete in their disdain for the "MSM." Still, Obama's pointed riff was unexpected by many in the press. Newsweek's senior White House correspondent, Richard Wolffe, said he took it as both personal and strategic. "The key term he used is 'mainstream media' – it's that we're the establishment and that he's siding with the people," Wolffe said. But, he added, "I was surprised by the edge."

The MSM has been attached to his hip for so long that they should have been classified as a new part of the human anatomy. It looks like the beginning of a riff if Obama thinks he can sidestep the MSM and make himself one of the people.