If they have Weisselbergs notes the document evidence alone proves beyond a reasonable doubt that Trump did what they say he did.Bragg has a lot of people testifying. He never called Cohen his star witness. You never provided receipts of that. A media outlet saying it, is not Bragg.
Pecker is just as important because he can help corroborate somethings that Cohen will say. Since Cohen is an adjudicated liar, they will need more then just his word. That's why I think Pecker is just as important. If the jury believes Pecker, that makes Cohen more believable.
But this is not ultimately about if he did it or not (which, as you know, never matters to the Trump people anyway)......it is ultimately about whether you can justify the charge as a felony rather than a misdemeanor and if you can get 12 people to agree that you SHOULD convict a former American president and one who may be again soon, of this kind of charge. Is this something strong enough/bad enough/illegal enough to potentially bring down a guy who current leads in the polls.
My opinion is they have virtually no shot at convincing 12 people to convict under these circumstances, and it will end in a hung jury. But that's just my guess. The jury is mostly educated people, so that works against Trump.