So, I asked House Minority Leader Nancy Pelosi in an interview the other night, what could keep the Democrats from retaking the House of Representatives in November? She pointed to a cup on the table between us. "When the Republican leadership tells its members, 'there is a blue cup on the table,' every Republican repeats, 'there is a blue cup on the table,'" she said. She sighed. "When I tell my fellow Democrats, 'there is a blue cup on the table,' one will say 'there is a blue cup on a round table.' Another will say, 'there is a blue...