The United States and Ukraine are trying to hammer out a natural resources agreement that would give Washington access to Kyiv’s untapped mineral riches in exchange for investments and what Ukraine hopes would be concrete security guarantees.Speaking to reporters on Wednesday, Ukraine’s President Volodymyr Zelensky said the deal could be a “big success” but that it would depend on talks with U.S. President Donald Trump.A broad strokes draft of the deal seen by CNN is scarce on details. And while Trump said on Tuesday that the two sides “have pretty much negotiated our deal on rare earth and various other things,” Zelensky remained more cautious.He said the deal was just a “framework” and insisted that some key questions remained unanswered.Here is what we know – and don’t know – about the agreement.What’s in the deal?The draft agreement seeks the establishment of a “reconstruction investment fund” that would be jointly managed …