JOE Biden has mocked Donald Trump with footage of him struggling to walk down a ramp in a new campaign advert.
"Some people are always in a hurry - they run when they could walk," a voiceover says over a montage of the nominee rushing around.
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"Race up steps when others take it slow," the male voice continues as a clip of running up a ramp is followed by slowly descending the West Point ramp.
The new campaign video was released on Thursday under the tagline of "Keep Up."
The clip of Trump walking slowly down the ramp raised a lot of questions about his health.
However, he insisted that the ramp was "long and steep and slippery" and blamed his footwear choice.
"They're slippery," he told The Wall Street Journal. "I like them better than the rubber because they don't catch. So they're better for this. But they're not good for ramps."
The new campaign video later shows a photo of Trump walking beside a row of cops as Biden describes as an idea "more powerful than any dictator or tyrant."
Just hours before the new video was released, said that Joe Biden shouldn't debate Donald Trump because it would "."
The House Speaker said: "I do not think that the president of the United States has comported himself in a way that anybody who has any association with truth, evidence, data, and facts.
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"He does that every day, I wouldn't legitimize a conversation with him, nor a debate, in terms of the presidency of the ."
Responding to Pelosi's comments during an interview with MSNBC on Thursday, Biden confirmed "I'm going to debate him."
He added: "I'm going to be a fact-checker on the floor while I'm debating him."