I second that wholeheartedly. I also wouldn't give up on Pickering just yet. I've been obsessing over the past Rangel/Pickering threads from the last few years, and only one Pickering recipient reported being a finalist for Rangel as well. They're two different fellowships with two different admissions committees, so there are no guarantees either way.
That being said, I also got the interview notification, so expect a frantic message sometime this weekend Aja. Hopefully we can all help each other through this.