The 2020 primary season kicks off tonight with the Iowa caucuses. But how does a caucus actually work – and why does Iowa get so much clout? Meanwhile, the Senate impeachment trial continues but the end is in sight. We’ll break down what to look for in the coming days. Also on today’s show: why the World Health Organization has a problem with countries imposing travel bans in the midst of the coronavirus outbreak, and why there might be more to Shakira’s viral Super Bowl moment than just another meme.

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