Still not a wave of superdelegates, but a continuing flow

The superdelegates are flowing to Obama.

Slowly but steadily, a string of Democratic Party figures is taking Barack Obama's side in the presidential nominating race and raising the pressure on Hillary Clinton to give up.

Sen. Amy Klobuchar of Minnesota is expected to endorse Sen. Obama Monday, according to a Democrat familiar with her plans. Meanwhile, North Carolina's seven Democratic House members are poised to endorse Sen. Obama as a group -- just one has so far -- before that state's May 6 primary, several Democrats say......

One North Carolinian confirmed that at least several of the state's House members would go public in favor of Sen. Obama before long. Meanwhile, elected officials in other states with upcoming contests, including Indiana, Montana and Oregon, are weighing whether to endorse Sen. Obama.

Later: A mass NC endorsement appears unlikely. (Politico/FirstRead.)