President Obama is joined at the White House by Mark Miller (back, second from left), Ellyn Miller, and son Jake Miller, who are applauded by Sen. Orrin G. Hatch, (back, left), Sen. Mark R. Warner, (fourth from left), Mike Gillette and Rep. Eric Cantor (right) after Mr. Obama signed into law a bill, the Gabriella Miller Kids First Research Act, on Thursday. (associated press)