What should change in DS-160 application if consular officer denies?
Since your visa has already been denied and the credibility of the sponsor has been questioned I see no point applying with the same sponsor based on additional documentation of the sponsor. I would strongly recommend bringing in a new sponsor. If you can't find a new sponsor and then you should at least add a joint sponsor to the existing sponsor. Please understand very clearly the affidavit of support issued by a sponsor is a legally enforceable document and there are very stringent requirements on evaluating financial capabilities of the sponsor. It's a tricky issue handle it with a lot of care. For many more questions and my answers to them, please visit my Quora space: Ask Riz