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Battleground Tracker Poll: Trump and Carson tied in Iowa; Hillary Clinton picking up steam

Name: Battleground Tracker Poll: Trump and Carson tied in Iowa; Hillary Clinton picking up steam
Uploaded: 2015-10-25T10:48:00-0400
Duration: 6 min 30 s
Description: The CBS News 2016 Battleground Tracker polls released today shows newcomers Donald Trump and Ben Carson tied in Iowa. On the left, Hillary Clinton now has an edge over Bernie Sanders in key battleground state.

The CBS News 2016 Battleground Tracker polls released today shows newcomers Donald Trump and Ben Carson tied in Iowa. On the left, Hillary Clinton now has an edge over Bernie Sanders in key battleground state.