(CNN) Twitter is telling some new congressional candidates that they'll need to win their primary races before their accounts can be verified on the social media network, CNN has learned.

The social media giant isn't making exceptions for candidates running for office in 2020, emails between a campaign representative and Twitter, obtained by CNN, show. That's despite indications that foreign entities have previously attempted to pose as US political candidates on social media.

When a congressional campaign representative requested information about getting verification for their candidate via email, a staff member for Twitter's government relations team replied, "Unfortunately, the general verification program is currently closed while we review our policy. In the meantime, we are only submitting requests for elected government officials and agencies."

"We are waiting to apply blue badge verification to profiles of election candidates until after your state's primary," the employee continued.

A Twitter spokesperson told CNN the email reflected the response the company's team that works with political campaigns gives to candidates seeking verification.