The 2020 Iowa Democratic caucuses are just over a week away. How is impeachment affecting the presidential campaigns? What are some poll numbers you should be paying attention to? All that and more on this episode of "Where Did You Get This Number?" with Anthony Salvanto!

With CBS News political reporter Caitlin Huey-Burns, Elections Unit senior manager Kabir Khanna, and 2020 campaign reporter Musadiq Bidar.

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