I have read some speculation that the wording chosen to report the results of the polygraph test is ambiguous.
Basically, the reporting says that she was found to be truthful when she was asked if such and such was an accurate summary of what she had previously said during the test.
I have read that also.
No one will show the results of the supposed lie detector test.
They just issue a vague and ambiguous statement and the media say that she passed.