Put another way, if the president didn't obstruct justice, he also didn't commit perjury when he denied it.

CNN

It is a federal crime to commit perjury and obstruct justice in civil cases, including sexually harassment cases.

CNN: Transcript: Judiciary Committee impeachment hearing

You tell consumers to commit perjury in state court, yet you warn them about criminal penalties for perjury in bankruptcy court.

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He also denies another charge of attempting to persuade a witness to commit perjury shortly before the 23-day legal action got under way.

BBC: Tommy Sheridan begins own defence in perjury trial

If he didn't obstruct justice or witness tamper or commit perjury, no one believes -- no one believes he should be removed from office.

CNN

Her recordings are Exhibit A in an investigation of whether the president asked a witness to commit perjury and conspired to obstruct justice himself.

CNN: Investigating the President

"There is no way that you could have him commit perjury or obstruction of justice and somehow sweep it under the rug, " he said.

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If a Senator thought the President lied but did not commit perjury, for example, he or she could vote to affirm the lie in the finding of fact without voting to convict on impeachment.

CNN: Fasten your seat belts

It had also been alleged Mr Sheridan attempted to convince SSP leader Colin Fox to commit perjury but this has been removed from the indictment, the court was told, due to a lack of corroboration.

BBC: Gail Sheridan accused of using IRA interview technique

The president did not commit perjury.

CNN: Transcript: White House Deputy Counsel Mills' statement

He did not commit perjury.

CNN: Transcript: White House Counsel Ruff's opening statement

He didn't commit perjury.

CNN: Transcript: White House Counsel Ruff's opening statement