By Mark Schierbecker [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], from Wikimedia Commons
Claire McCaskill is narrowly behind in the latest polls. Like Nelson, she's not a moderate, but she plays one on television. Missouri voted for Trump by wide margins, and a no vote might cost her. She didn't vote for Gorsuch, but she might vote for Kavanaugh because she's feeling the heat from the Trump Train.