[wsj-responsive-image P="http://si.wsj.net/public/resources/images/BN-MW461_0302de_P_20160302065722.jpg" J="http://si.wsj.net/public/resources/images/BN-MW461_0302de_J_20160302065722.jpg" M="http://si.wsj.net/public/resources/images/BN-MW461_0302de_M_20160302065722.jpg" caption="Hillary Clinton addresses her supporters at a Super Tuesday rally in Miami." credit="Agence France-Presse/Getty Images" placement="Inline" ] Democratic front-runner Hillary Clinton raised $30 million in contributions for the primary election race last month, lagging behind rival Bernie Sanders’s fundraising for the second month in a row even as she has opened […]