With aides usually walking between Biden and journalists' camera position outside the White House, the visual effect is to draw less attention to the 81-year-old's halting and stiff gait.
Some Biden advisers have told Axios they're concerned that videos of Biden walking and shuffling alone - especially across the grass - have highlighted his age.
Starting April 16, Biden was joined by staff or lawmakers nine out of 10 times he walked to and from Marine One.
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