Ah, but THIS part makes perfect sense. McConnell and others have already publicly stated they have no interest in a fair trial on the facts. I think in this case she's actually being straightforward - why send it over when she knows the process is rigged? And Graham and McConnell gave her the perfect opening.
No offense, but have you lost your mind?

I cant imagine a worse way to screw the pooch on this. Setting aside the fact that I am not for impeachment and feel it is only going to hurt the Dems (as opposed to censure that would have probably helped them), this creates so many headaches.
First, think about how this would have played if they followed procedure. Presumably they would have spent Thursday deciding on who the managers would be and organized delivery for Friday. Doing so would have kept the noise to a minimum from distracting from the debate and gave Republicans the least amount of time to organized and respond before going on break. Trump would then need to spend the next two weeks defending himself and mounting his legal response. Then, the Dems in the safe districts could have went home and crowed about how they impeached the president. I still feel it would have been a disaster for the swing district Dems though.
This, on the other hand, is an unmitigated catastrophe. Withholding the articles apparently pissed off Noah Feldman (one of the legal scholars the Dems called to testify) so much so he penned an article in Bloomberg News that Trump really has not been impeached yet. Although there is a legal debate if impeachment happens after the vote or after the articles are delivered, it still means the Dems really cant fully brag about impeaching Trump yet. On top of that, this completely plays into Trump's narrative that the impeachment is nothing but a partisan scam from the Do Nothing Dems and every other Republican talking point. Add to that that congress is not in session and not making any noise, meaning any political news coming out of DC will be what Trump wants it to be. He is going to dominate the news cycle with this for two weeks, as opposed to having to defend himself. Furthermore, Republicans are now not under any pressure to organize yet (or not as much) and can enjoy the holiday while also tweeting about the Do Nothing Dems. And on top of this, the swing district Dems are still just as screwed. Last, this little stunt really has no leverage what so ever over McConnell and ensures he can just chug along at getting judges approved.
It is a really kind of interesting watching such a shrewd politician fall from grace. Pelosi's legacy is going to be loosing the house while ensuring Trump's re-election.