Zoe Lofgren actually said...

Lying under oath is a crime. Lying about sex is a shame. But neither one involved the use of Presidential powers.

We need to proceed and I thank you, Mr. Goldman, for your hard work and for your presentation.

If he had evidence of his innocence, why wouldn't he bring it forward?

The gist of the question here is the potential of abuse of the President's power to benefit himself in the next election.