Tried watching the Spacey version. FU supposedly placed the new Secretary of State by planting a news story. I couldn't believe there wouldn't be more politicos doing exactly the same thing. Nor could I believe that the President/Chief of Staff would pay any attention to the news on this.
Since we're watching this show through Frank's eyes, we have no evidence to support that no other politicos plant news stories or maneuver into jobs.
In fact, we have direct contradictory evidence, as we see the state legislator from South Carolina who tries to sabotage Frank with the whole peach thing so that he can become a US Congressman... luckily, Frank stamps him out.
And regarding the President listening to fake news stories, you better believe politicians are in tune with that sort of thing. Public opinion is a strong force.
^ This. It's all a perception game.