After Ben Lockwood was incarcerated for various crimes of domestic terrorism, Lauren was appointed by vice president/acting president Plastino, as the interim secretary of the United States Department of Alien Affairs.
Becoming Overseer of the D.E.O.
In mid-2018, Haley was standing beside President Phil Baker when reprimanded D.E.O. director, Alex Danvers, via video call for allowing Supergirl to intervene in Kopy's attack on the NCPD before whispering to her Commander-in-Chief to attend to other matters. Later on, when Alex disobeyed Baker's order and allowed Supergirl to intervene at the National City Fair Grounds, Haley was assigned by the President to directly oversee the D.E.O.
Following Ben Lockwood's exposure as Agent Liberty, President Baker visited the D.E.O. to highlight the Metropolis Inquisitor painted Lockwood as a wronged human activist. As Haley affirmed that the D.E.O. will transition to a transparent agency, prompting Baker to demand Supergirl reveal her civilian identity and was forced to fire her when she refused.
Haley eventually discovered Supergirl's human identity from Agent Reiff and attempted to force her into government service, forcing Alex to knock her out before J'onn J'onzz wiped her memory of her discovery. Unfortunately, he could not wipe her determination to discover Supergirl's identity as the next day, Haley employed a Vertullarian into the D.E.O. To protect those D.E.O agents that were aware of Supergirl's secret, J'onn J'onzz wiped that knowledge from their minds; Alex reluctantly allows her memory to be wiped as well, to protect herself and her sister, though this later causes tension between her and Supergirl, as her life with Kara was important to her understanding of the alien life the D.E.O. commonly encountered.
Discovering Phil Baker's affiliation to Lex Luthor
Becoming Interim secretary of the United States Department of Alien Affairs
- "I may not be the Woman of Steel, but if you push me, you will find I do not bend."
- —Lauren Haley to Alex Danvers[src]
Haley is tough as nails and only cares about protocol and procedure. She also considers herself a pragmatist, believing it worthwhile to sacrifice the few to save the many. She is (initially) loyal to Phil Baker, the new president of the United States (unaware at the time that he did not have the country's best interest at heart) but after Baker went against the protocol of their country by ordering the construction of a satellite with an anti-spacecraft cannon attached to it, she started to ponder on whether the president's strange decisions regarding Ben Lockwood and the satellite were part of something larger.
Haley hated the D.E.O. when J'onn J'onzz (a green martian) was the director of the organization and is initially xenophobic; she is willing to work with aliens as long as it serves her purposes. As part of Project Morae, she participated in the training of three alien visitors to become "living weapons", though her methods were violent and caused the aliens to rebel and attempt to kill her.
Haley's opinion of aliens starts to change when she sees that then-president Baker is attempting to destroy alien spacecrafts and that the Children of Liberty have transformed into a violent domestic terrorism group. When Supergirl's doppelgänger, Red Daughter, attacks the White House, Haley is overcome with guilt and remorse.
- High-level intellect/Military training/Expert tactician/Leader: As an ex-colonel of United States Marine Corps, Haley was a highly intelligent individual, an excellent tactician and leader.
- Network: Due to Haley's affiliation with the Marine Corps and United States Department of Alien Affairs; she had connections with several military organizations.
- Intimidation: Haley was able to intimidate Reiff (off-screen) to the point that she revealed that Kara Danvers is Supergirl.
Behind the scenes
- In the DC comics, Lauren Haley is a lieutenant in the Air Force and an associate of Wonder Woman.
- In the DC comics, Lauren Haley is Caucasian.