NEW ORLEANS — Should Republicans be the party of no? Or the party of yes?

There was a hint of disagreement on that count as a parade of Republicans took the stage here on Friday at one of the largest party gatherings — Sarah Palin rallies not included — since the Republican National Convention two years ago.

With two key presidential contenders missing, the meeting had a more pressing purpose than for party stalwarts to catch an early glimpse of potential candidates for 2012: A tryout for messages — and messengers — for the midterm election year and beyond as Republicans regroup and rebuild.

“There is no shame in being the party of no,” Ms. Palin said, making a rare matinee act alongside other Republicans, rather than a starring marquee role. “When they’re proposing an idea that violates our values, violates our conscience, violates our Constitution, what’s wrong with being the party of no? We’re the party of hell no!”