Mary Peltola’s win in the Alaska special election this week became the latest surprise to spark concern for Republicans as it appears that a once presumptive red wave in November is neither definite nor guaranteed. Peltola, the first Alaska Native and first Democrat in decades to be elected to fill the state’s lone House seat, edged out two formidable Republican challengers on Wednesday, including former Alaska Gov. Sarah Palin (R), to serve the remainder of the late Rep. Don Young’s (R) term.