Updated at 3:40 p.m. with statement from Collins’ office.

Whoever is running U.S. Sen. Susan Collins’ Twitter account fired off a missive today that they soon wished they hadn’t. 

This morning Collins’ tweeted the following about U.S. Sen. Bernie Sanders, I-Vt., "Good ol’ @SenSanders is always entertaining. Not a huge fan. I’ll give him this, the genetically modified food label makes sense."

The account administrator quickly deleted the tweet, but not before it was retweeted by several followers of Collins’ feed. Kevin Kelley, Collins’ spokesman, said a junior staff person with access to Collins’ account "accidentally tweeted something that the Senator would never say and which does not reflect her views."

"Senator Collins’ office has a zero-tolerance policy for this type of activity," Kelley said. "We deeply regret this error."

Kelley said that the junior staffer was fired for the tweet.

The tweet was also caught, in perpetuity, on Politwoops, a program run by The Sunlight Foundation that collects and stores the deleted tweets of members of congress and presidential candidates.

A little background on Politwoops and how some members of Congress are using it to gain notoriety here.