Former US President George HW Bush shaved his head this week in solidarity with the young son of a member of his security detail who is suffering from leukemia.
President Barack Obama welcomes former President George H. W. Bush to the White House to honor service volunteers with Points of Light, Bush's nonprofit organization.
Republican presidential candidate Mitt Romney is getting an informal boost from the 41st president of the United States less than two weeks before the Iowa caucuses.
