Calling herself "the housewife of the senate," Helen Ring Robinson was Colorado's first female state senator and only the second in the United States. Serving from 1913 to 1917, she worked for social and economic justice as a champion of women, children, and workers' rights and education during a tumultuous time in the country's history. Her commitment to these causes did not end in the senate; she continued to labor first for world peace and then...