Democratic Debate Rule Change Could Open Stage to Bloomberg

(Bloomberg) -- The Democratic Party has changed requirements for candidates to earn a spot on the presidential debate stage, a move that could mean Michael Bloomberg will face his rivals for the nomination for the first time. The changes could also knock some other candidates off.The change will eliminate the current fund-raising requirement, which has kept the former New York mayor out of the debates to date, but also raises the polling threshold to 10% in four approved polls. Bloomberg has yet