(Getty Images/Justin Sullivan)

Democrat presidential hopeful Joe Biden is promising that, if he’s elected, he’ll cure Alzheimer’s disease.

“We’re going to invest billions of dollars to find, and I promise you, cures for cancer, Alzheimer’s and diabetes," he said.

Biden, who has drawn scrutiny for his public mental lapses, made the promise during a Super Tuesday speech celebrating his primary wins last night – which he began by confusing his wife and sister when introducing them, following up on an on-air gaffe he made earlier in the week when he mistook Fox News Host Chris Wallace for NBC’s Chuck Todd.

After flubbing the introductions of his wife and sister in the opening of Tuesday’s speech, Biden later vowed to spend billions of dollars to find cures for diseases like Alzheimer’s, cancer and diabetes:

“Look, our agenda is bold. It’s progressive. It’s a vision. Where health care is affordable and available to everybody in America. We’re going to bring drug prices down under control and no more surprise billing. Access to hospitals in rural areas, as well as urban areas. Access to care. A bold vision. “We’re going to invest billions of dollars to find, and I promise you, cures for cancer, Alzheimer’s and diabetes.”

Biden, then, went to list other promises, such reinstating the Paris Climate Accord and defeating gun manufacturers and the National Rifle Association.