Twitter is finally answering users' requests for an edit tweet button. But, if you want to use it, you'll have to pay for it.
The feature is going through testing and will soon be available for users paying $4.99 a month for Twitter Blue. You'll be able to edit a tweet up to 30 minutes after sending it out. Here's the catch, the tweet will be marked as edited so others will know, AND users will be able to go back and see the original tweet!!
As always, think before you tweet.