Do not assume it does. A private project contribution and an instructed gift to the United States are different payments with different terms.
Establish what funds can actually be used
Review the existing agreement and any real release or refund before relying on the money again. The individual Gold Card gift is currently US$1 million after vetting, separate from US$15,000 nonrefundable processing; the corporate principal gift is US$2 million. Answer two questions about every dollar already committed: is it recoverable at all, and if so, when and on whose decision.
Money that returns after a redemption window, at a manager's discretion, or only when a project reaches a milestone is not money available for a payment due earlier, whatever the totals say. Hypothetical example: a contract manufacturer's documentation unit was funded through a partnership whose agreement permits withdrawal only with the general partner's consent; a household budget treating that capital as available has assumed away the clause that governs it. Build the plan from funds actually accessible on the dates they are needed, keep the non-refundable processing amount separate from the principal gift that follows vetting, and remember that a private project contribution is not a payment made to the United States.
Ask the same two questions about money still to be paid, since a commitment already signed constrains the plan as surely as a payment already made.