Lied how? Trump asked Comey to drop the Flynn " thing", that is obstruction. 

There is an investigation into Trump's campaign.

Nobody claimed that Trump was the target of an investigation yet. No MSM source has said " target" If his campaign is guilty, he may well be innocent. Or he may not be. Or he may have colluded in a way that is not illegal, but not what you would want in a POTUS.

Please tell me a story from a major MSM that was wrong. There has been 1 or 2 that have not been bang on , out of hundreds.  And Trump insinuated he had tapes. So produce the tapes. If he does not, he either lied that he had them or does not want you to hear them, either way, he lied.