Justice Lords' universe

In a parallel universe, Lex was the President of The United States.

Lex's history was presumably the exact same as his mainstream counterpart. The main difference being, was that this Lex Luthor succeeded in becoming President of The United States. His time in office was a short-lived one to say the least. After his success at being appointed to office, Luthor executed the Flash and set into motion events capable of causing an all-out war so devastating, it could destroy the entire planet. In retaliation, Flash's comrades attacked the White House. Whilst Batman and Wonder Woman held off the Secret Service, Superman went straight for Luthor in the Oval Office. Inside, Luthor had become unstable, frantically attempting to gather papers and documents into a suitcase, whilst rambling that "they couldn't see the beauty of his plans for the world". President Luthor's words hit so hard that Superman crosses the line by executing Luthor. As soon as Superman burst through the doors, Luthor mocked him that it was the fault of the people for putting him in the Presidency and that they were going to burn for it. Luthor then revealed a button hidden in his desk, that if activated could instigate nuclear war. Luthor hesitated to see what his longtime adversary would do next, with Superman remarking there were about six different ways to stop him from pushing the button. Luthor however, knew that all of them involved deadly force, meaning that stopping him would require nothing short of killing him. He further mocked Superman, proclaiming him as "his greatest accomplice" due to Superman's reluctance to finish him because of his love of being a hero. Luthor's words hit Superman hard and unexpectedly, they were to be his last. Superman decided that if being a hero meant his enemy would get away with his schemes, then he was finished being one. At this, Superman's eyes glowed red and he incinerated Luthor with his heat vision, killing him. President Luthor's "plans" was most likely why the Justice Lords took a facist outlook for the Earth's protection. Two years later, the Justice League was given a security video of Presient's Luthor's death and the tape made it's way into Cadmus's possession, which was later viewed by Question and Huntress. Toward the end of the Cadmus Crisis, the Luthor/Brainiac fusion had one of his androids take Luthor's form to taunt Superman to trying to somewhat recreate President Luthor's death. When the Flash almost died after removing the Brainiac armor off Luthor's body, Superman almost kills Luthor but refrains and says he's not "the man who killed President Luthor".