For more, check out this post.
The (Un)Popular Vote by Jasper Sanchez (YA)
Something Like Possible by Miel Moreland (YA)
Red, White & Royal Blue by Casey McQuiston
Enter the Aardvark by Jessica Anthony
White Houses by Amy Bloom (Historical)
Bonus: These are all “realistic” fiction, but for political SFF, check out The Councillor by E.J. Beaton, Fireheart Tiger by Aliette de Bodard, and Winter’s Orbit by Everina Maxwell.