In an interview with Fox News, he said that opponents of the United States are looking at the American president, who "is unable to endure even a harmless interview without a cheat sheet - and who fell three times while climbing the stairs."
Miller noted that he himself climbed the stairs more than once, and it was not slippery.
In his opinion, other countries may "attack" the United States.
“Now we are in greater danger,” the politician summed up.
Earlier, the White House explained the difficulty of Biden with the ascent of the plane by a strong wind with a strong wind.