Elizabeth Childs is a psychiatrist campaigning from her camper, which bears the logo, “Washington Needs a Shrink.” The commissioner of mental health under former Governor Mitt Romney, she is one of three Republicans vying to replace retiring Democrat US Representative Barney Frank. In Thursday’s Fourth Congressional District primary, she faces Fall River dentist David Steinhof and Sean Bielat, who challenged Frank two years ago. The winner will face the victor in a Democratic field led by Joseph P. Kennedy III.
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