BOSTON (AP) -- President Barack Obama's African aunt showed up in a wheelchair Thursday, a cane across her lap, for a hearing in U.S. Immigration Court to make another bid for asylum because of what her lawyer said included medical reasons. Kenya native Zeituni Onyango, 57, and two doctors are expected to testify at the hearing, which is closed to the public, lawyer Margaret Wong said. She is applying for asylum for medical and "other" reasons, Wong said.