So question; if someone in the Obama Admin had whistleblow against him, would you be just as suspicious/disbelieving?
It would depend if it were an actual whistle blower with first hand information, Obama's treatment of whistle blowers was much harsher than Trump's. Take Manning as an example imprisoned, sex change, pardoned on his way out of office.
I withheld judgement on the Ukrainian report until it came out the whistleblower was a set up and the actual transcript was released, and yes it was a transcript and Vindman testified that it was accurate from the phone call.