Clinton expands lead in delegates despite Sanders' win in NH

WASHINGTON (AP) — Despite Bernie Sanders' win in New Hampshire, Hillary Clinton is adding to her big lead among the delegates who will choose the Democratic nominee for president.

Since the New Hampshire primary, Clinton has picked up endorsements from 87 more superdelegates to the Democratic National Convention, and Sanders has added just 11, according to a new Associated Press survey.

The disparity is sparking a backlash among some Sanders supporters, who complain that the Democratic nominating process is decidedly undemocratic, rigged in favor of Clinton.

Clinton's campaign expresses confidence that she will maintain a strong lead among superdelegates even as she focuses on state-by-state voting.

Sanders' ability to attract younger people and independent voters, as he did in New Hampshire, will be a strong selling point to change people's minds, he said.

People need to start voting with their heart, what they know is right,

Associated Press writers Brian Slodysko in Indianapolis, Holly Ramer in Concord, New Hampshire, Christopher Weber in Los Angeles, Summer Ballentine in Jefferson City, Missouri, David Sharp in Portland, Maine, and Danica Coto in San Juan, Puerto Rico, contributed to this report.