Coming from the EU, I am in the process of getting a DV visa, and planning to go to the US for reconnaissance mid-June.
When entering the US, I understand, the border patrol has the right (even with a valid greencard-eligible visa) to turn it down, and cancel it for arbitrary reasons.
In contingencies like this, would applying for the Visa Waiver Program as a next-best-alternative let me enter the United States (for the VWP period)?