Exploration Through Example provides a graph of the national debt under Democrats and Republicans.
I understand that under certain right-wing economic ideologies, a crippling debt is desirable, because it provides a pretext to slash social services spending, and since government is bad, wasteful, and evil, (at least when it’s trying to provide a social safety net) having an economically crippled and feeble government is ideal. So sorry, couldn’t fund schools or health care or benefits for children in poor families — we’re all out of money — no idea where it all went. By sheer coincidence, damn, my Halliburton stock is sure looking good! (The name Grover Norquist pops into mind in this context.)
I guess Republicans are into red ink as well as red states.