DENVER (AP) — In a showdown at close quarters, an aggressive Mitt Romney sparred with President Barack Obama in their first campaign debate Wednesday night over taxes, deficits and strong steps needed to create jobs in a sputtering national economy. “The status quo is not going to cut it,” declared the Republican challenger.

Democrat Obama in turn accused his rival of seeking to “double down” on economic policies that actually led to the devastating national downturn four years ago — and of evasiveness when it came to prescriptions for tax changes, health care, Wall Street regulation and more.

With early voting already under way in dozens of states, Romney was particularly assertive in the 90-minute event that drew a television audience likely to be counted in the tens of millions — like a man intent on shaking up the campaign with a little less than five weeks to run.