For the second time in as many weeks, Democrats have won a competitive special election. And by the numbers, this win was even more impressive than last week’s victory in New York’s 19th District. On Wednesday, the Alaska Division of Elections announced that former state Rep. Mary Peltola had defeated former Gov. Sarah Palin in the special election for the state’s vacant U.S. House seat, becoming the first Alaska Native ever elected to Congress and the first Democrat to win a statewide election since 2008. [SNIP] Democrats have clearly overperformed in special elections since the Supreme Court overturned the constitutional...