Good presentation of manuscripts is a vital part of being a speechwriter. An immaculate manuscript deters meddlers.
You want to impose upon your speaker that to make a change is like pulling a brick out of a delicate Jenga tower.
The whole performance could be put in jeopardy.
A few spelling mistakes and grammatical errors have the opposite effect. The speaker gets above himself and starts telling you how to do your job.
So when you’ve finished drafting your masterpiece, it helps to have a rest for ten minutes. And then go to ‘Tools’ in Word (assuming you use Microsoft Word) and click on the ‘Spelling & Grammar’ option.