Planned Parenthood President Cecile Richards, front, introduces Democratic presidential candidate Hillary Clinton during a campaign rally Sunday at Burford Garner Elementary School in North Liberty, Iowa. (Evan Vucci/AP)

DES MOINES — Planned Parenthood Action Fund became the latest of Hillary Clinton's allies to jump into the advertising fray in Iowa with a new six-figure campaign just three days before the caucuses.

The campaign includes two 30-second television ads and homepage takeovers for two Iowa newspaper websites, the Cedar Rapids Gazette and the Des Moines Register.

Both ads tout the organization's endorsement of Clinton — the first time ever that it has endorsed a candidate in an open primary.

In the Democratic presidential primary race in Iowa, Clinton is running neck-and-neck with Sen. Bernie Sanders (Vt.) after holding a substantial lead weeks ago. Planned Parenthood is one of a slew of outside organizations and unions that have flooded the state to provide additional support for her campaign, urging their members to support Clinton.

Planned Parenthood Action Fund, the advocacy arm of the women's reproductive health organization, has already been engaging its members and other Democratic voters on the ground in Iowa with phone banks and mailers.

“Hillary Clinton is someone who won’t back down from this fight — she’s made it clear that fighting for women’s health and reproductive rights is a top priority," Deirdre Schifeling, the organization's executive director, said in a statement. "At the end of the day, she’s the one we trust to go head to head with the extreme antiabortion politicians hell-bent on rolling back the progress we’ve made for women.”

The campaign also comes as Planned Parenthood won an unexpected victory against the makers of undercover videos that claimed the organization was illegally engaging in the sale of fetal tissue from abortions. A Texas grand jury cleared Planned Parenthood of wrongdoing and instead indicted the makers of the video on felony charges.

Still, those videos have intensified the partisan rancor over abortion in the presidential race, and in Congress, they bolstered Republicans' efforts to push legislation to defund Planned Parenthood.

One of the two ads boosting Clinton focuses heavily on the potential threat that Republicans pose to abortion access.

"Our country is at a crisis point for women," the ad says. "If the top Republican candidates get their way ... access to safe and legal abortion? Gone."

A second ad, which began airing in Iowa earlier this week, begins with Clinton, who the narrator said "has the strongest record on women’s health of anyone, ever," in her own words:

“It’s always the Republicans who say, ‘you can’t have paid leave, you can’t provide health care,' " she said. "They don’t mind having big government to interfere with a woman’s right to choose and to try to take down Planned Parenthood. I'm sick of it!”

Planned Parenthood Action Fund has pledged to spend $20 million in this election cycle.