Longtime Democratic-Farmer-Labor Party Chair Ken Martin has been elected chair of the Democratic National Committee in a commanding first ballot victory, vaulting him to the national stage while leaving a major hole to fill for local Democrats.

For two months as he campaigned for Democratic National Committee chair, Ken Martin worked methodically through a call sheet of the committee’s 448 members, sometimes on the phone for as long as an hour,

The longtime leader of Minnesota's Democratic Party has a new job: To lead the Democratic National Committee. CBS News political reporter Hunter Woodall explains how Ken Martin won despite failing to get the backing of top Democrats in Washington,