Joe Biden for Vice President is a very smart political choice for Barack Obama.
Biden has everything Obama lacks- longevity in the Senate, congressional connections, foreign relations experience (Chairman of Foreign Relations committee), extensive judiciary committee involvement and a reputation for being a "moderate" liberal. Remind me again what Obama has besides an ambiguous "change" platform? Well, now he has Joe Biden who is more qualified to be president than he is. Make no mistake- Biden will make a McCain presidential bid much more difficult. There may be no member of Congress seen as more accomplished and well-networked than Joe Biden. In debate Biden is sharp as a tack. He has been around congressional dealings for six terms and knows how things work in Washington.
Interestingly, the Republican counterpart to Biden is probably John McCain. McCain is similarly experienced and connected, though not as able in debate. Who will McCain pick as his running mate? Most agree McCain will pick someone quite a bit younger than himself figuring that person might be the 2012 Republican nominee for president (since McCain will be 76 at that time). There are not too many young Republican leaders who can take on Biden in debate.
Biden brings a legitimacy to the Obama ticket- a smart choice for VP.