Democratic presidential hopefuls Sen. Barack Obama, D-Ill. with Sen. Joseph Biden, D-Del. (AP Photo/Charles Rex Arbogast, FILE) It's official(ish). Delaware Senator Joe Biden is Senator Barack Obama's vice presidential pick, according to a CNN text message alert. The Obama campaign said nothing is official until a text message is sent out per their plan, but after the Associated Press found out that Virginia Gov. Tim Kaine and Sen. Evan Bayh of Indiana both said......