There's been a lot of social media speculation about President Donald Trump staging his White House delivery from "DoorDash Grandma" -- AKA Sharon Simmons -- and people are accusing her of being on the president's payroll.

That's because a video of Sharon started circulating after Monday's televised delivery ... showing her supporting the "One Big Beautiful Bill" during a 2025 committee meeting with Tennessee Rep. David Kustoff.

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Between that and her vocal support of Trump's "No Tax On Tips" initiative, people are calling Sharon a plant.

But DoorDash insists that's not the case. Julian Crowley -- Head of Public Affairs for the company -- responded to the accusations on X, saying she's just a Dasher and grandma who happens to support the "No Tax on Tips" law.

He acknowledged the stunt was "clearly and obviously" staged in another post, writing ... "No one is claiming it was a real delivery."

But Crowley said it's "off base" to accuse Sharon of being a plant or an actor, adding ... "She is a Dasher and she participated to support the policy that benefits her."

During the delivery -- it was McDonald's, obviously -- DT asked the cameras ... "This doesn't look staged, does it?"

And after a clunky convo, he tipped Sharon $100 ... so she technically did get paid for the PR stunt.