The series starts with the Obama-esque President elect entering the oval office the day before his inauguration and reading the letter left for him by the outgoing Bush-esque President, as is tradition. It's revealed that a lot of the warmongering and defense boosting of the outgoing Presidency was in preparation for a looming alien invasion. The incoming President spends his first day in office validating 43's claims and talking to the reconnaissance mission (with an annoying 15 minute delay) deep into space.
I enjoyed that writer Charles Soule in some respect sought to justify the actions of the Bush Presidency and the most sensible rationale for it was alien invasion. Beyond the high concept, Soule executes the story wonderfully and, in a sense, logically. Both the on-the ground and in-space perspectives provide two different story threads, but equally fascinating. I'm super keen to learn what's actually happening out in space, and to see how 44 differentiates his presidency with this burden looming over him.