Until recently, members of the National Rifle Association could view past legislator ratings for political candidates on the website for the organization’s political action committee. Those old grades, which were often used to categorize the NRA-friendliness of sitting legislators, are no longer available to logged-in members. A drop-down menu that once displayed past years is now empty.

Jennifer Baker, a spokesperson for the NRA, initially denied that any change had been made to the organization’s system.

“Nothing has changed with our archives,” Baker said when we spoke by phone on Monday. Told that past grades were no longer available even to members, she speculated that it might be “an IT glitch” on our end.

Another NRA employee indicated that he was aware of the change when a Washington Post reporter called over the weekend to find past grades for legislative candidates. He confirmed that the past grades were no longer online and weren’t available elsewhere.

He also offered a possible rationale.

“I think our enemies were using that,” he said. He did not give his name.

In the wake of high-profile shooting incidents in the U.S., letter grades have often been used as a means of categorizing elected officials as hostile to new regulations on gun ownership or as an indication of willingness to take on the powerful interest group.

Baker acknowledged that legislators themselves used the NRA’s ratings in this way.

“Obviously people tout their old grades and say their own grades, but for us it’s a service, a voting guide, relevant to that specific election,” she added.

She reiterated, though, that past grades were specific to a candidate and an election year.

“Our grades are a member service,” she explained. “Our members vote and one of the services that we provide them is to assess – to the best that anyone can – the candidates’ position on the Second Amendment and make a determination what candidates in a very specific election are the best candidates to protect and defend their constitutional rights.” The grades are issued as close to the election as possible in order to have the most relevance to that election.

Pressed on the rationale for the change to the website, Baker first expressed frustration at the question.

“I don’t understand- Why are you asking? What does it matter to you?” she asked. “The grades are not relevant after the election.”

She then reiterated that she didn’t know that any change had occurred, indicating that she would check and see if it had and promising to call back once she had an answer. She didn’t. A subsequent email didn’t receive a reply.

People calling the NRA’s Institute for Legislative Action, the contact point for the organization’s political efforts, hear a recorded prompt before their call is connected.

“Thank you for calling the NRA-ILA grassroots division,” it says. “Due to recent attacks on our Second Amendment, we are experiencing high call volume. Please be sure to call your lawmakers to express your opposition to these latest anti-gun proposals.”