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 .
Former House speaker announces he 's suspending campaign . Gingrich leaves campaign trail $ 4.3 million in debt . Analysts say 2012 campaign will have mixed effects on his political legacy . Gingrich 's campaign peaked with early win in South Carolina .