[...] a result would only serve to underscore the awkward position that Sanders, Clinton and the Democratic Party face as the presidential primary campaign continues into its endgame. In Omaha, Nebraska, 62-year-old Vicki Baines said her favorite Republicans didn't make it to the top four and joked that when she voted, she wrote in a fictional character she could trust: "I'm sticking with my man Pinocchio." On Monday, she courted suburban women in Virginia and on Tuesday, in Lexington, Kentucky, she released a proposal to ensure families don't spend more than 10 percent of their income on child care. Clinton's campaign hopes suburban women, turned off by Trump's bombastic rhetoric, could be a key source of support for her in the fall. [...] she's also trying to stop Sanders from gaining the psychological advantage of a series of wins this month. Democrats also held a primary election Tuesday in Nebraska, although the party allocated all its delegates to the summer nominating convention in an earlier caucus won by Sanders.