This may not seem like your mother's League of Women Voters. The 86-year-old league, so often regarded as the epitome of good-government wonkery, will wade into pointedly political territory during its four-day national convention, which begins today in Minneapolis. Immigration policy, the death penalty and a move to upend the Electoral College are on the convention agenda. And the featured speaker at the convention's banquet on Monday is Garrison Keillor, the homegrown humorist who has long and loudly been a defiantly partisan Democrat. "We're looking forward to what he has to say, but just because he's a Democrat, you can...