If Joe Biden jumps into the Democratic primary, Hillary Clinton will be ready to go on the offensive. According to a source close to the Clinton campaign, a team of opposition researchers working on behalf of Clinton is currently digging through Biden’s long record in office to develop attack lines in case the vice-president runs. The research effort started about a month ago and is being conducted by operatives at Correct the Record, the pro-Hillary superpac founded by David Brock, which is coordinating with the Clinton campaign. According to the source, the research has turned up material on Biden’s ties to Wall Street; his reluctance to support the raid that killed Osma bin Laden; and his role in the Anita Hill saga as chairman of the Senate Judiciary Committee.