my rear passenger tire is leaning! on 1994 Buick Park Avenue

my rear passenger tire is leaning ,and looking like its about to fall off what can be my issue?

Asked by for the 1994 Buick Park Avenue
sounds like a failed bearing. Have towed to a shop for inspection and repair. If leans bad enough and you drive it, it may come apart.
1 more answer
The strut tower may have also failed. This is a somewhat common issue in the 'rust belt'. The area around the strut mount will rust through the body and cause a similiar condition.