Ahead of Wednesday’s GOP presidential debate, campaigns are embracing a new service being offered by Twitter Inc. to raise political cash, particularly small donations. The company, through a partnership with payments processor Square Inc., launched a service Tuesday designed to make it easier for campaigns to directly accept secure donations from Twitter users. To make a donation to a candidate, users enter their names, debit-card numbers and other information on a Square website in a Twitter browser window. After the transaction is completed, the data are saved for future donations. The service doesn’t accept credit cards. Once a campaign signs up, Square generates a “cashtag” link, which stays the same if it is shared by the campaign, or a fan of the campaign. The tool is free for candidates to use, and Square charges a 1.9% processing fee for each...

http://www.wsj.com/articles/twitter-courts-u-s-presidential-campaigns-with-new-donations-service-1442314800