Jamari Brighthaupt, 11, gets blood drawn by registered nurse Rae Montilla at the Georgetown Pediatric Mobile Clinic. Jessica Camille Aguirre/NPR hide caption

itoggle caption Jessica Camille Aguirre/NPR

Republican presidential candidate Mitt Romney participates during the Wolfeboro, N.H., Independence Day parade on Wednesday. Kayana Szymczak/Getty Images hide caption

itoggle caption Kayana Szymczak/Getty Images