(CNN) – The National Rifle Association holds its annual meeting this weekend with the gun debate cooling overall and pivoting to the states, where gun-control advocates are recalibrating around big money.
The three-day event in Indianapolis is expected to draw 70,000 to its sprawling shooting, hunting and outdoor exhibits as well as rallies, seminars and concerts.
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Big politicos will take the stage on Friday for speeches at the NRA’s leadership forum in an effort to energize gun control advocates, who claimed victory in the high-stakes legislative battle last year in Congress.
Potential 2016 Republican presidential candidates, including Louisiana Gov. Bobby Jindal, Florida Sen. Marco Rubio, Indiana Gov. Mike Pence and former Sen. Rick Santorum of Pennsylvania, a 2012 GOP White House contender, are scheduled to address the audience.
Republican Senate Leader Mitch McConnell, who's facing a tough re-election battle in Kentucky this year, will speak at the forum as well.
The question is whether he’ll show up on stage with a long-gun, repeating his appearance before conservative activists in March.
And Sarah Palin, the former governor of Alaska and 2008 GOP vice presidential nominee, is set to appear at a separate event Saturday night, the "Stand and Fight Rally."
The event takes place with the national debate over guns cooling in a midterm election year.
Last year's meeting in Houston followed the Newtown, Connecticut elementary school massacre and came amid the battle over gun-control legislation in Washington.
The Democratic controlled Senate ultimately failed to move forward with legislation to expand background checks, a blow to President Barack Obama and the gun control movement.
Gun-rights activists heralded the victory as evidence the country was on their side even though polls at the time indicated that nearly nine in 10 Americans supported the measure.
Public backing for more gun control, however, has generally declined in the past year.
The debate has become largely dormant on the national stage, despite more mass shootings and renewed concern over inner city violence, including in Chicago where close to 45 people were shot last weekend alone.
The effort has shifted to the state and local level to both expand and tighten gun laws.
Gun-control activists will also head to Indianapolis this weekend to demonstrate near the convention. Over 100 moms and 20 gun violence survivors will attempt to raise awareness.
The activists represent Everytown for Gun Safety, the new organization backed by former New York City Mayor Michael Bloomberg, as well as Moms Demand Action for Gun Sense in America and Mayors Against Illegal Guns.
Bloomberg pledged last week to spend $50 million of his own money to fund the gun-control movement and take on the NRA.
On the eve of this weekend's gathering, former President Bill Clinton will headline a fundraiser in Manhattan on Wednesday for the gun-control group founded by former Arizona Rep. Gabby Giffords and her husband Mark Kelly.
Approximately 50 people will attend the fundraiser for Americans for Responsible Solutions at a private home.
Giffords, severely wounded during a 2011 shooting in Tucson, and Kelly, a former astronaut, are both gun owners.
CNN's Kevin Bohn contributed to this report.