Yes you can, but you have to get permission from Obama, and you have to keep things about Obama neutral.
For example, if you like him, you can't gloat about him, and if you hate him you cannot create insults about him.
I am going to write a story.
Nobody can write your story except you! You already have a good idea - why let some anonymous person on the internet have your story? If they give you their ideas, it's their story, and they could legally publish it and get credit. Check out the Related Questions for ideas on how to write your own story.
you have to write about what is going to happen in your story.
Anyone that can write can be an author. Regardless of your age, you can write and publish books and stories. These days with the internet it is especially easy to self-publish if no publishers will take your story, so you don't even need to be very talented!
first you need to write your story and when you publish the book it should show up!
Nobody can tell you what to write - you must write what is in your own heart and mind. Copying what someone else has written leads to dull, boring writing that is not going to help you learn how to write better. It is also known as plagiarism, and if you publish the writing you copy, you can be sued. Click on the Related Questions to learn how to write this for yourself!
The author decided to write a story because there was not much dialogue going on between the characters so it was easier to write it as a story.
To become an author, you are going to write your book. You can then get a publisher to edit and publish it for you. From there, print it, and sell it.
you tell what you are going to write about in short sentences.
First you do some research and learn about rockets. Then, imagine whatever is going to happen to your rocket and write that down as your story.
Yes; Yen Press will allow you to submit some samples of your work and they may publish it. You can also try and write it as a webcomic or self-publish.
Obama = אובמה