International Laws and Treaties

Edwards, Van Hollen spar over Social Security, trade

The two Democrats running for U.S. Senate in Maryland came out swinging in their first formal exchange Sunday, debating each other's commitment to Social Security, effectiveness in office and electability in next year's general election.

In a feisty candidate forum organized by the Maryland Chapter of the National Organization for Women — the first such meeting in the nascent race to replace retiring Sen. Barbara A. Mikulski — Reps. Donna F. Edwards and Chris Van Hollen sought to amplify distinctions in their records on trade, entitlements and women's issues.

Edwards, of Prince George's County, directly attacked Van Hollen for past comments on Social Security,...