House Republicans are seeking nearly $500,000 to expand their investigation into Planned Parenthood, according to Democrats on the House Administration Committee.

With that new money, the GOP-led investigative panel would cost more than $1 million by the end of 2016, the Democrats said.

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The funding dispute, which first broke open within the House’s internal spending committee last month, is reigniting debate over Congress’s nearly year-old probe into Planned Parenthood.

The committee’s six Democrats have repeatedly called for the panel to be disbanded and are now strongly opposing the additional funding request, which they say is being considered without public scrutiny.

The panel has found no wrongdoing by Planned Parenthood or its partners after it formed in the wake of last year’s video controversy that claimed to show the group was illegally profiting from fetal tissue donations.

The Democrats, led by Rep. Jan Schakowsky (D-Ill.), have argued the group has done little beyond holding two hearings and issuing dozens of subpoenas for information unrelated to Planned Parenthood.

"This has not been — nor will it ever be — a fact-based investigation. Instead the Panel is being run as a taxpayer-funded arm of anti-abortion groups, in pursuit of a partisan, anti-science, and anti-health care agenda,” Schakowsky wrote in a statement Friday.

A spokesman for the panel's chairwoman, Rep. Marsha Blackburn Marsha BlackburnDemocrats smell blood with new DHS whistleblower complaint Hillicon Valley: Election officials prepare for new Russian interference battle | 'Markeyverse' of online fans helps take down a Kennedy | GOP senators unveil bill to update tech liability protections GOP senators unveil new bill to update tech liability protections MORE (R-Tenn.), could not immediately be reached Friday.