NEW : Sen. Hillary Clinton urges Floridians to back Obama in appearance with him . Obama will leave campaign trail Thursday after Indiana stop and return Saturday . Rest of Thursday events canceled ; Michelle Obama will stand in on Friday . The Obama team made the announcement after a busy day of trading attacks with Sen. John McCain on the Democratic presidential hopeful 's readiness for office . Comment:
NEW : Sen. Hillary Clinton urges Floridians to back Obama in appearance with him . Obama will leave campaign trail Thursday after Indiana stop and return Saturday . Rest of Thursday events canceled ; Michelle Obama will stand in on Friday . Comment: