The sweeping election reforms that Alaska voters approved two years ago were intended to reduce the power of major political parties and benefit centrist candidates who don't cater to either ideological extreme. But Alaska's new system of open, nonpartisan primaries and ranked-choice general elections may produce the opposite result when it goes into effect for the first time Saturday, in a special election to fill the remaining term of the late Representative Don Young, a Republican who died in office in March after holding the state's lone House seat for 49 years. Former Alaska Governor Sarah Palin and a handful...