So why is he wearing a “Hillary” boot...?
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A cancer doctor (so he claimed) on Reddit said he suspects the boot is to disguise/hide “foot drop”. Foot drop, sometimes called “drop foot,” is the inability to lift the front part of the foot. This causes the toes to drag along the ground while walking. Foot drop can be caused by brain or spinal disorders.
Two other comments he made - the type of tumor McCain has usually reoccurs within 6-12 months (after it’s been treated by whatever means) and that McCain appears to be losing weight.
He had a minor Achilles tear last week.