It looks like somebody on Scott Walker’s campaign team pulled the trigger a little early. Walker is set to announce he’s running for the presidency on Monday, not today:

Oops is right.

There is some confusion, however, if the tweets was actually deleted. The tweet doesn’t show up on his timeline, but it is live if you have the URL:

Screenshot 2015-07-10 at 5.28.18 PM

Here’s the original tweet that is still live … for now:

This is Schrödinger’s tweet. It’s both live and deleted until you open your Twitter app!

Update. According to BuzzFeed, Twitter is to blame for the error:

A Twitter spokesman said Friday night that the tweet wasn’t the Walker campaign’s fault:

“We’re looking into today’s issue, and we’ve determined the Walker team was not at fault,” the spokesman said in a statement.
Twitter did not provide further information on what exactly happened.

Editor’s note: A typo has been corrected on the carousel headline.