The Giffords group plans to invest $15 million in supporting Harris and anti-gun candidates.

Activists advocating for gun control are intensifying their efforts to support presumptive Democratic presidential candidate Kamala Harris and aid Democrats in winning the House of Representatives in November.

On Friday, GIFFORDS, a gun violence prevention group founded by former Congresswoman Gabrielle Giffords, announced a $15 million campaign aimed at battleground state voters. The ad buy includes television, digital advertising, direct mail, and sending Giffords and surrogates to campaign for Harris and down-ballot candidates who support stricter gun laws.

GIFFORDS will intensify its efforts to support pro-life politicians, including Vice President Kamala Harris's re-election, with just over 100 days until election day, according to Emma Brown, GIFFORDS' executive director.

NBC News first reported that the multi-million dollar campaign will prioritize swing states like Michigan and Arizona for the presidential election, and swing congressional districts in California and New York, which could influence the House of Representatives' control next year.

Americans nationwide are resolute in their demand for leaders who confront the gun lobby and prioritize public safety, according to Brown.

In June, GIFFORDS released internal polling data showing that 70% of American voters in battleground districts are highly concerned about gun violence. The organization contends that certain voter groups, such as women, Latino and Black Americans, strongly support stricter gun control measures and could sway close races if motivated to vote.

Brown stated that this year is crucial and expressed excitement about assisting allies who are dedicated to preventing gun violence at all levels of government, including the state legislative level, Congress, and helping Vice President Harris have effective governing partners when she wins in November.

In June, a Planet Chronicle poll revealed that 45% of Americans considered guns an "extremely important" issue, placing it 7th on a list of 10 crucial issues. The top three issues were "Future of American democracy" (68%), "Economy" (66%), and "Stability and normalcy" (58%).

Erich Pratt, senior vice president of Gun Owners of America, a Second Amendment group, questioned the notion that gun control is a significant motivating factor for many voters.

Kamala Harris and her administration's policies have contributed to the current crime crisis in the United States, according to Pratt. The threatened confiscation of common self-defense firearms and the soft on crime approach of officials at the state and local levels in major urban centers have not helped Americans feel safe.

"GIFFORDS, a group that claims to care about reducing violence, should urge Harris, a former prosecutor, to mobilize U.S. attorneys offices against violent criminals. However, instead, they prefer to push for unconstitutional disarmament that leaves everyday Americans defenseless. This won't sit well with swing state voters."

In 2011, Gabrielle Giffords, a former Democratic representative from Arizona, was critically injured in an assassination attempt when a gunman shot her in the head at an event in her district. The GIFFORDS website states that the former congresswoman founded her eponymous group a decade ago with the goal of "breaking the gun lobby's grip on our political system."

Sen. Mark Kelly, D-Ariz., is reportedly one of the top contenders to be Harris' running mate, with her husband being Kelly.

On Thursday, Giffords attended an event for Harris at the Salt & Light church in Pennsylvania, where she interacted with community activists in Philadelphia. The predominantly Black neighborhood where she spoke has been affected by gun violence, including a tragic incident last weekend that resulted in the deaths of three people and the injury of at least six others.

Giffords discussed her lengthy recovery from the 2011 shooting that killed six people during a meeting with constituents at a Tucson grocery store. Harris' other surrogates, including Pennsylvania House Speaker Joanna McClinton, portrayed the November presidential election as a choice between Harris, who would enact an assault weapons ban, and more gun violence under Republican Donald Trump, who is backed by gun-rights groups.

"McClinton stated that America is facing violence in both rural and urban areas, and as voters, we have the power to choose between a more violent or safer nation."

Giffords and McClinton, both allies of Gov. Shapiro and under consideration for the Democratic vice presidential nomination, evaded questions about the veepstakes. Giffords' aides told the Associated Press that the event had been planned before President Biden dropped out and endorsed Harris, and before her husband emerged as a potential candidate for the 2024 ticket.

The Associated Press contributed to this report.