Could this possibly be the way the Republican Senators are trying to deal with Christine Blasey Ford?

Give her enough rope and let her hang herself.

Why are Republicans so disrespectful to women?

I think she realised that she would be charged with perjury if she spoke under oath. That explains why she now refuses to talk under oath.

She is a fraud, that is why she won't testify

They are trying to get her to testify under oath so she can be charged with a crime.

I find it odd that she is demanding the FBI investigate her claim, while Trump and Kavanaugh oppose it.

Why would a liar demand her claim be investigated by the FBI?
Why would a person telling the truth not want the FBI to verify it?

I DON'T THINK THEY ARE REQUIRING HER TO TESTIFY UNDER OATH