Social media was abuzz on Monday night after the reporting app suffered problems and speculation was that Hillary Clinton’s campaign manager was involved in its creation.

Bernie Sanders supporter Nomiki Konst blasted Mook.

The documentation app (we never discussed that on the URC) was run by Robby Mook. No bids. Just another contract handed out to a crony. We DID try to reform that but Perez’s appointee committee erased those reforms. So Ed, maybe know the facts before you throw allegations. https://t.co/tntdx6fAJ4

— Nomiki — "No-me-KEY" (@NomikiKonst) February 4, 2020

“The documentation app (we never discussed that on the URC) was run by Robby Mook. No bids. Just another contract handed out to a crony,” she alleged.

“…it’s Robby Mook’s stupid app,” Michael Brendan Dougherty claimed. “He torpedoed a Dem nominee four years ago, now he’s back to take down the whole primary.”

You couldn’t have scripted this better; it’s Robby Mook’s stupid app. He torpedoed a Dem nominee four years ago, now he’s back to take down the whole primary. https://t.co/8O7phitg42

— Michael Brendan Dougherty (@michaelbd) February 4, 2020

“Is Robby Mook’s Russiagate scam responsible for the app that Iowa Dems are relying on to report caucus results?” Max Blumenthan wondered. “I can’t find anything else on who developed the app.”

Is Robby Mook's Russiagate scam responsible for the app that Iowa Dems are relying on to report caucus results? I can't find anything else on who developed the app. https://t.co/hDHvnNC3RN pic.twitter.com/urEaVJLyyw

— Max Blumenthal (@MaxBlumenthal) February 4, 2020

Mook said it wasn’t him and sought to distance himself from the fiasco.

Sorry, folks. I did NOT have anythjng to do with building the Iowa caucus app. I dont know anything about it, had no role in it, and dont own a company that makes mobile appa. Please contact @iowademocrats with questions about it.

— Robby Mook (@RobbyMook) February 4, 2020

“Sorry, folks,” he wrote. I did NOT have anythjng (sic) to do with building the Iowa caucus app. I dont (sic) know anything about it, had no role in it, and dont (sic) own a company that makes mobile appa (sic).”