Okay. President Trump has been impeach. So, why do we not know who the whistle blower is or what he/she said?
Certainly if there was a 'whistle blower' they would have testified, we'd know what they claim to have known, but even with the formal impeachment, we still do not know who the whistle blower is or what they know. Don't we have a right to face our 'accuser'? Shouldn't you need them to at least testify?
What does it tell you that we do not? Likely that they do not exist.