Lex Luthor

Lex Luthor is a politician living in Metropolis. He is the former CEO of LexCorp but stepped down from this position as he pursued the political field.

Prior to the Series
Lex was born in Metropolis as the eldest son of Lionel and Lilian Luthor. He is the older brother of Lena and the late Julian Luthor, as well as the half-brother of Lucas Dunleavy.

At some point, Lex met Oliver Queen, Bruce Wayne, Ray Palmer and Tommy Merlyn as their parents were business partners and would put their sons together when they had meetings.

Lex attended a private Middle School together with Oliver and Tommy where they bullied him. It is unclear if he switched schools, however, this might be his reasoning for disliking Oliver.

After he finished High School, Lex spent some time in Smallville, working for his parents' company. Here he met and befriended Clark Kent, resulting in them becoming very close. It has been alluded to them having been in a relationship of some kind.

When Lex' father died, Lex took over as the CEO of LuthorCorp, renaming it into LexCorp. He ran the business for a few years before stepping down as he started campaigning as a politican.

i just wanna have fun (and get rowdy)
Following Oliver's creation of the Queen Consolidated LGBT Foundation, Lex has created a similar one of his own. He claimed that it's been a "the more, the merrier" situation.

worked too damn hard for this
In June 2018, Lex bought the rights to the Angel Warrior comic books.

Trivia

 * Lex' liking of Warrior Angel is a reference to the Smallville version of his character, as are his past relationships to Oliver Queen and Clark Kent.
 * Nobody seems to like Lex and yet he's gaining more political power.