From Deirdre Walsh CNN WASHINGTON (CNN) – A preliminary estimate from the Congressional Budget Office projects that the House Democrats' health care plan that includes a public option would cost $871 billion over 10 years, according to two Democratic sources. [cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/POLITICS/10/21/health.care.cbo/art.pelosi.afp.gi.jpg.jpg caption="Nancy Pelosi, right, here with Harry Reid, proposes a "more robust" public … Continue reading CBO finds Dem bill with public option reduces deficit