Shattered America: Superhero

Port Royal, November 1, 1861: A storm known as the Expedition Hurricane completely wipes out the Union Navy, leading to an alternative history where George McClellan becomes the next President of the United States and the rest of history as we know it changed forever. Jonah Rush was a courier who should have died in this storm. Now, he has somehow been transported into the modern day as a speedy Superhero known as The Gust. How has the world changed and reacted to this traumatic change in history? Where did these Superpowered heroes come from? And most importantly, is there a way to undo the damage that has been done?