However,there were only a few glimpses of the Democrat. At 7:15 p.m. Thursday Biden left for the evening, and escorted his mother to a waiting SUV. Other family members drover off in a convertible.
Biden and his family arrived home around 9:00 p.m. ,but still made no comment about whether he's been selected as Obama's running mate.
While Biden has been tight-lipped today, earlier this week he briefly addressed the speculation, only to say he hadn't spoken to anyone about being on the ticket.
But elsewhere, others are talking about the qualities the longtime Delaware lawmaker might bring to Obama's campaign.
As chairman of the Senate Foreign Relations Committee, he has the experience in world affairs that Obama's critics say the candidate is lacking.
Just this week, Biden returned from a diplomatic trip to the embattled former Soviet state of Georgia.
The 65 year old senator was first elected in 1972 and would bring years of political experience to the Obama ticket.
Obama also is believed to be considering Governors Kathleen Sebelius of Kansas and Tim Kaine of Virginia, and Senator Evan Bayh of Indiana.