With nothing less than political supremacy on the line, Democrats and Republicans in the state House will spend the opening days of an election-year session making a mad dash toward tax relief for voters.

The chamber’s Democrats, who hold a 102-101 majority, are pinning their hopes on delivering property tax breaks deeper than those promised from slots revenues.

Republicans have hitched their fortunes on reducing Pennsylvania’s 3.07 percent personal income tax, arguing that efforts to reduce property taxes without imposing tighter controls on school district spending are useless.