If he shouts "Mein Furher, I can walk" right before the swearing in, that wouldn't surprise me:

US Vice President Dick Cheney pulled a muscle in his back while moving boxes and will be in a wheelchair for Tuesday's historic inauguration of incoming president Barack Obama, the White House said.

"Vice President Cheney pulled a muscle in his back today while moving boxes into his new house," White House spokeswoman Dana Perino said.

"Under his physician's recommendation, the vice president will be in a wheelchair for the next couple of days, including for tomorrow's inauguration."