He resigned because he'd already had enough trouble as president. Mainly the Watergate scandal. His plan was for him to step down and if he was arrested the vice president which would then be the vice president would pardon him. Also, if he didn't resign he'd likely be impeached anyway.
One of the lasting impacts is the laws and fundamentals that "sprouted" from it.
I hope this helps! :)
They were tasked with protecting the movement of trade goods. They also kept defense of the northern and western frontier against Indian and Mexican incursions, defense of the coast against Union invasion, and suppression of Union loyalists within Texas.
It was John Connally that was wounded by gunfire while riding in the presidential limousine when john f. kennedy was assassinated. <span>Governor Connally, riding in the same limousine in a seat in front of the President and three inches more to the left than the President, was seriously injured but survived. </span>