Gingrich continues to top the polls, though his lead over Romney has narrowed in recent weeks. In Gallup's latest tracking poll, Gingrich was only three percentage points ahead of the former Massachusetts governor, considerably narrower than the 15-point lead he enjoyed in early December.
Gingrich is helped by the fact that his top two contenders both carry their own set of baggage. As Paul faces questions about his newsletters, Romney continues to have trouble getting the base to rally behind him.
"It's not the carry-on kind of baggage," said Democratic strategist James Carville. "This is the kind of stuff you got to check. It's a lot of baggage."
Though he may struggle in Iowa, Romney does have a sizeable advantage in New Hampshire, which holds the nation's first primary. A new Boston Globe poll released Sunday showed the former Massachusetts governor garnering 39 percent of the vote among the state's likely Republican voters. Gingrich and Paul tied for second place, with each garnering 17 percent of the vote.