Democratic Debate: Rivals Launch Sharpest Attacks Ahead of Iowa Caucuses

Democratic front-runner Hillary Clinton put rival Bernie Sanders on the defensive Sunday over health care and gun control, in a series of sharp exchanges during their final debate before voting for the presidential nominations begins in Iowa.

Mrs. Clinton argued Mr. Sanders has been weak on gun restrictions and that his health-care plan would be a mistake because it would require starting over after a long, contentious national debate on the issue. Mr. Sanders, w