Reword.

The slightest change in time could make Michael Jackson still alive and is the POTUS.

3 answers

If time had varied even slightly, Michael Jackson could have been alive and serving as the President of the United States.
Make it informal and slightly humorous
If time had sneezed or done a little shimmy, we might have had the one and only Michael Jackson, moonwalkin' his way to the Oval Office as the POTUS, still kickin' it alive and groovin'.