CONCORD, N.H. (AP) — Sensing some momentum, Republican presidential contender Herman Cain is promising to add staff and campaign more aggressively in New Hampshire and Iowa.The former Godfather's Pizza chief executive is also picking up new endorsements. Jack Kimball is the recently departed New Hampshire Republican Party Chairman who is among those endorsing Cain Wednesday.Cain spoke to reporters near the New Hampshire State House, insisting he's not the flavor of the week. But he admits he needs to do more to build a campaign in early voting states.He says he now has the money to add staff in New Hampshire and Iowa. And he vowed to bring his campaign bus to the Granite State in the coming weeks.Cain has been noticeably absent in early voting states in recent months.