District Attorney Mike Allen won’t pursue charges against Republican congressional candidate Dave Williams and El Paso County GOP Chairwoman Vickie Tonkins in response to a criminal complaint that alleged the two withheld data from candidates who were competing with Williams for the party’s nomination.

In March, Joshua Griffin asked Allen, a Republican, to determine whether Williams used his position as Colorado GOP chairman to obtain lists of GOP delegates before they were made available to Griffin and other Republican candidates for the 5th Congressional District seat held by retiring U.S. Rep. Doug Lamborn.

Griffin also alleged that Tonkins gave Williams, her longtime ally, an unfair — and illegal — advantage by withholding delegate lists from Griffin ahead of the party’s nominating assembly. But the district attorney’s office on Friday said that prosecutors didn’t find enough evidence to support the claims.

“The investigation did not uncover sufficient evidence to support the allegation and no criminal charges will be filed,” Allen’s office said in a statement.

Williams was the only candidate to advance to the primary ballot at the Republicans’ March 23 congressional district assembly in Colorado Springs, while two other contenders — Griffin and former state Rep. Douglas Bruce — failed to win enough delegate votes to qualify. Williams faces a June 25 primary against former podcaster and political consultant Jeff Crank, who petitioned onto the ballot.

Tonkins and a spokesman for Williams told Colorado Politics they were disappointed the district attorney spent taxpayer funds investigating a complaint they both characterized as frivolous and unfounded.

“Not to make light of the allegation, but I had forgotten about it as I presented the truth and evidence to the DA’s office some time ago,” Tonkins said in an emailed statement. “It is sad that taxpayer dollars are spent on things that have no validity and should have been dismissed the day it was received.”

She added: “It is my hope that those who do these types of things, would think to ask questions of the ones they are accusing before putting out allegations that are unfounded at best and most that are blatant lies, like this complaint.”

Chris McIntire, a senior advisor to Williams’ campaign, applauded the finding but denounced Allen’s decision to open an investigation into the complaint in the first place.

“We are thankful for this ridiculous situation to be over as it’s clear the conflicted and biased DA’s office wasted taxpayer resources investigating an obviously frivolous complaint so they could generate negative press against the only candidate endorsed by President Trump and the NRA, Dave Williams,” McIntire said in a text message.

In a release announcing the completion of its investigation, Allen’s office cited a Colorado statute that requires district attorneys to “forthwith investigate” all complaints that lay out specific criminal allegations.

Prosecutors also said that their review didn’t address what they described as concerns that Williams has “blurred the lines” between his roles as party chairman and congressional candidate, including allegations that he improperly diverted party resources to his campaign. Those allegations, the district attorney’s office noted, have been reported to the Federal Election Commission.

Griffin told Colorado Politics that he accepted the prosecutors’ findings.

“I have no issue with the DA’s decision on the matter,” Griffin said in a text message. “I’m just thankful that we (of El Paso) still can trust our elected judicial leaders. Unlike our state and El Paso party chairs who we can only trust to fail us at every turn.”