Complex sentence: At Missouri Democratic functions, beginning in April, 2007, Mayor Barnes made it clear that she was seriously considering a run for Congress in 2008, and on May 14,2007 she officially announced her candidacy.
Split into simpler sentences: At Missouri Democratic functions, beginning in April, 2007, Mayor Barnes made it clear that she was seriously considering a run for Congress in 2008. On May 14,2007 she officially announced her candidacy.