The disclosure marks the first time Republicans have revealed how much taxpayer money they are spending on the investigation rooted in deceptively edited Center for Medical Progress videos.

The House Administration Committee has tapped nearly 80 percent of the chamber’s funding reserves, approving $790,000 for the investigation, split two-thirds and one-third between Republicans and Democrats. The committee initially transferred $300,000 to the panel in 2015, which was only for that year. Excluding the 2015 transfer, the 2016 budget shortfall totals about $710,000. Including the transfer, about $410,000.

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Congressional Republicans investigating widely discredited claims about fetal tissue trafficking and abortion expect to spend $1.2 million on the anti-choice crusade by the end of the year.

The figure represents the so-called Select Investigative Panel on Infant Lives’ total estimated budget for calendar year 2016, a high-ranking GOP aide in the U.S. House of Representatives told Rewire. The disclosure marks the first time Republicans have revealed how much taxpayer money they are spending on the investigation rooted in deceptively edited Center for Medical Progress (CMP) videos, dubbed by Democratic legislators as a “witch hunt.”

Contrary to the anti-choice front group’s allegations, three prior congressional inquiries and 13 states to date have found no evidence that Planned Parenthood profited from fetal tissue donations.

Even as the aide revealed the scope of Republicans’ spending, more questions emerged about when and how they are getting taxpayer money.

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The Committee on House Administration has tapped nearly 80 percent of the chamber’s funding reserves, approving $790,000 for the investigation, split two-thirds and one-third between Republicans and Democrats. The committee initially transferred $300,000 to the panel in 2015, which was only for that year.

Excluding the 2015 transfer, the 2016 budget shortfall totals about $710,000. Including the transfer, about $410,000.

Republicans, however, anticipate a roughly $450,000 shortfall, according to the aide, who acknowledged that they have yet to figure out how they would make up the shortfall. Details about potential funding sources could not be immediately ascertained, though the aide said Republicans would have to produce the funding no later than December 1.

Several options exist for GOP lawmakers. Republicans could earmark the money in an increasingly likely continuing resolution, which would fund the overall U.S. government in the absence of viable appropriations bills. However, that would require U.S. Senate passage—hardly a guarantee with such a controversial rider, according to a House Democratic aide.

Republicans could amend the initial resolution creating the panel and bring it back to the floor, the Democratic aide told Rewire. Resolutions only require passage by one chamber, the aide said, providing a more failsafe option.

Another possibility is for Republicans to draw from the budget of the House Energy and Commerce Committee, which has jurisdiction over the panel.

Rep. Jan Schakowsky (D-IL), the panel’s ranking member, denounced the investigation following the disclosure of taxpayer dollars behind it.

“Republicans continue to waste taxpayer dollars recycling inflammatory and thoroughly discredited allegations of anti-abortion extremists,” Schakowsky told Rewire in an email. “The Select Panel started with a lie, and has been conducted to perpetuate that lie through manufactured, misleading ‘evidence’ and suppression of facts that run contrary to the Republicans’ predetermined narrative. It would be bad enough if this were just a waste of taxpayer time and money. But this Panel is putting women’s health care and life-saving research at risk. America deserves better. Speaker Ryan can and should stop this witch hunt now.”

In a July 14 interview with Rewire, Energy and Commerce Chairman Fred Upton (R-MI), a once outspoken proponent of fetal tissue research, didn’t know how much, if any, committee funding has gone toward the select panel’s work. Upton referred Rewire to a committee spokesperson, who did not reply to requests for comment.

Select panel Chair Marsha Blackburn (R-TN) similarly could not answer Rewire’s funding inquiries at a July 14 press conference providing an interim update on the investigation a year after the release of the first CMP videos. Blackburn deferred to Republican leadership regarding how much financial support Energy and Commerce may have provided the panel beyond the House’s reserve coffers.

“At this point, that is what we have,” she said.

Republican leaders have been increasingly vocal in their support for the panel. House Speaker Paul Ryan (R-WI) in June said he trusts Blackburn to conduct the anti-choice investigation, though researchers said she jeopardized their privacy, safety, and job security through unredacted documents. Ryan cited the need for the panel’s work in response to Rewire’s funding questions at his July 14 press conference.

“We want this committee to keep doing its job, doing its work, they have [a] very important job to do,” he said.

Ryan elaborated on his support for the panel in a subsequent video, “We Are the Pro-Life Generation.”

“The panel found these weren’t isolated incidents—there’s an entire black market in aborted baby body parts,” he said. “And some of it is receiving taxpayer funding.”

Blackburn and other Republicans on the panel have made numerous references to “baby body parts” despite the link between such rhetoric and escalating anti-choice violence.