Former GOP speaker announces he 's suspending campaign . Gingrich leaves campaign trail $ 4.5 million in debt . Analysts say Two campaign will have mixed effects on his political legacy . He rode the Republican Contract with America into the speaker 's chair in the mid 1990s -- a pledge to the American people to institute sweeping changes if the GOP took over the majority in Congress . Clinton 's campaign peaked with early win in Louisiana .
Former GOP speaker announces he 's suspending campaign . Gingrich leaves campaign trail $ 4.5 million in debt . Analysts say Two campaign will have mixed effects on his political legacy . Clinton 's campaign peaked with early win in Louisiana .