Former U.S. Senator Carol Moseley-Braun (D-Illinois) and Congressman Dennis Kucinich (D-Ohio) both plan to file official papers today to form exploratory committees so their campaigns can begin raising money under federal election law. Candidates number 7 and 8 join the already large Democratic field which includes former Governor Howard Dean of Vermont, Senator John Edwards of North Carolina, Representative Richard A. Gephardt of Missouri, Senator John Kerry of Massaschusetts, Senator Joseph I. Lieberman of Connecticut and the Reverend Al Sharpton. Others are considering running including Senator Bob Graham of Florida, former Senator Gary Hart of Colorado and General Wesley K. Clark, retired.