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A new top tier emerges in Iowa: poll
For months, Donald Trump and Ben Carson have been at the top of the GOP field, but Ted Cruz is gaining ground in Iowa and Carson has slipped by 10 points, according to the latest Quinnipiac poll.
Lawrence: Trump's ‘lie’ infiltrates language06:14
DOJ caves to Trump-backers12:35
Confused by Trump scandals? Chris Hayes explains04:00
Clapper: Dossier was not used for Intelligence assessment of 201604:08
Clapper: Russia eminently successful in the election of 201607:14
James Clapper on Russia: 'They swung the election to a Trump win'09:48