HARRISBURG — If House Republicans are successful in getting the special elections for two Allegheny County-based House districts delayed until May, the results of a Senate special election could lead to a whole new level of chaos in the power struggle in the state House. Republicans are clinging to a 101-99 advantage, with three special elections looming in seats vacated by Democrats. If Democrats win all three of those races, as expected, the Democrats will reclaim the majority in the chamber for the first time in more than a decade. One of those special elections — to fill the vacancy...