U.S. Senate candidate Loretta Sanchez casts her ballot at Orange High School in the June primary election.U.S. Senate candidate Loretta Sanchez earned a total of $156,674 in 2015 and paid $36,306 in federal and state income taxes, according to the Orange County congresswoman&rsquo;s 2015 tax returns.Sanchez declined to release the tax returns of her husband, attorney John "Jack" Einwechter, saying they filed separate returns and that she felt no obligation to disclose his tax information.&ldquo;He has no financial conflict,&rdquo; Sanchez said. &ldquo;My husband is a lawyer. He has four or five clients. They have nothing to do with anything.&rdquo;Atty. Gen. Kamala Harris in mid-October released the joint 2015 tax return she filed with her husband, Los Angeles attorney Douglas Emhoff.&nbsp; The couple reported earning approximately $1.17 million that year and paid just under $450,000 in federal and state income taxes.The Harris campaign was quick to criticize Sanchez for not releasing her husband&rsquo;s return."Like nearly every aspect of her campaign, Loretta Sanchez&rsquo;s failure to honestly and completely release her taxes is a joke.&nbsp; And it&rsquo;s not funny,&rdquo; said Harris political consultant&nbsp;Sean Clegg.&nbsp; &ldquo;Every serious candidate for U.S. Senate, including Barbara Boxer and Dianne Feinstein, has fully disclosed spousal tax returns.&rdquo;The congresswoman said her husband filed separately in 2015 because he was still sorting out some financial matters with his ex-wife. Sanchez added that by filing individually she pays more in taxes because she cannot claim the marriage deduction.&ldquo;The Harris campaign can ask and whine for anything and everything they want. That doesn&rsquo;t mean we need to adhere to their demands,&rdquo; said Sanchez political advisor Luis Vizcaino.Both Sanchez and Harris have a net worth in the millions, according to financial disclosure reports.Here are some highlights from their returns:Sanchez claimed $4,394 in charitable contributions, about 3% of her income, including donations to the California Breast Cancer Research Fund and the California Peace Officers Memorial Fund.Harris and her husband claimed $32,947 in charitable contributions, about 3% of their income, including donations to USC and the United Nations Children's Fund.&nbsp;Sanchez collected $43,200 in rent from a home she owns in Palos Verdes, and had $41,000 in expenses for the home.As California attorney general, Harris makes $158,775 annually.&nbsp; As a congresswoman, Sanchez is paid an annual salary of $174,000.