Healthcare law faces new road bump in Missouri

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Tuesday also saw the reelection of Democratic Sen. Claire McCaskillClaire McCaskillGOP must avoid Dems' mistakes when replacing ObamaCare Live coverage: Mattis confirmation hearing for Pentagon Mattis's views on women in combat takes center stage MORE (Mo.) and Democratic Gov. Jay Nixon, both of whom were dogged by questions about the healthcare law.

Missouri voters backed Mitt Romney for president.