To answer the first part of the question, no, Joe Biden is not currently a Senator. He is currently Vice President of the United States. He did serve as a Senator in the past before he became VP, though. To answer the second part, no, Joe Biden is not a Republican. He is a Democrat.
Joe does not live in Pennsylvania. Joe Biden and his wife Jill live in Greenville, Delaware, a small suburb or small town just outside of Wilmington, Delaware. hes from Pennsylvania but moved to Delaware, he is currently living in Delaware
Jill Biden has only one biological child with her husband, Joe Biden. Their child is Ashley Biden. Joe Biden has two other children with his previous wife, Neila Hunter. His children from his previous marriage are Beau Biden and Hunter Biden.