Democrats gathering in Denver are significantly more nervous about Sen. Barack Obama’s prospects this fall than they were a month ago, and are urging him to address weaknesses in his candidacy.

Barack Obama named Delaware Sen. Joe Biden as his vice presidential running mate early Saturday, balancing his ticket with a congressional veteran well-versed in foreign policy and defense issues.

Singing at the Democratic convention, Sheryl Crow dedicated her song "Strong Enough" to Barack Obama and then added a twist to the lyrics for the occasion.

Joe Biden might have Dmitry Medvedev to thank for his spot on the Democratic ticket.

Obama and the Democrats had better hold McCain and the Republicans accountable if  Obama wants to be able to take his next vacation at Camp David. 

Democrat Barack Obama got what he may need most when he chose Sen. Joe Biden of Delaware as his running mate — a vice presidential candidate with encyclopedic foreign policy know-how and a political brawler ready to take on Republican John McCain's frontal assault on his opponent's newness on the national stage.

Hillary Rodham Clinton's supporters had mixed reactions Saturday to the selection of Joe Biden as the Democrats' vice presidential candidate.

In August 2007, three men who later became entangled in a Mississippi bribery scheme raised money for Sen. Joe Biden's run for president.