Lensman series, Book 2 of 7

In First Lensman, we find the benevolent super-beings of Arisia ready to bestow the first "lens" on a human being (which, among other things, will give humans telepathic powers). The honor goes to Virgil Samms, who will ever after be known as the "First Lensman." But it's a title that he'll have to earn by establishing the Galactic Patrol, a group that is at once powerful and incorruptible, and will protect the universe from the evil and almost-unstoppable Eddorians. If that weren't tough enough, Samms must also dodge assassination attempts at home and help his second-in-command, Rod "The Rock" Kinnison, win the presidency of North America. And that's just the beginning of his troubles.