Twitter has partnered with mobile payments firm Square to accept online donations for US political campaigns, just a day after teaming up with payment processor Stripe to accelerate its Buy Button solution.

Next years US presidential election is shaping up to be the most digital-focused campaign yet for every candidate, with digital ad spending expected to reach record highs. Twitter is looking to capitalise on its perception as both a forum for discussion and a news source during this time by encouraging users to make donations through its services.

Candidates will be able to sign up for an account through Square Cash, generating a unique URL which can be used to request donations from supporters. Any Tweets including the URL will automatically include an image with a Contribute button, enabling users to click through to pledge money.

“Every day, voters, politicians, and government officials all over the world use Twitter to communicate in creative ways that enrich public discourse and increase government access and accountability,” said Jenna Golden, head of political advertising sales at Twitter. “Its what voters learn and share in these conversations that routinely motivates political actions. Thats why were making it easier for Twitter users to actively support candidates and causes.”

Twitter met with every major presidential candidate before the launch of the service, and nine candidates including Hilary Clinton, Bernie Sanders, Mike Huckabee and Bobby Jindal have already tweeted asking for donations.