If you've ever seen Thank You for Smoking and appreciated the dark political satire, check out Boomsday from Christopher Buckley by the same author, https://en.m.wikipedia.org/wiki/Boomsday_(novel)

Cassandra Devine, "a morally superior twenty-nine-year-old PR chick" and moonlit angry blogger, incites generational warfare when she proposes that the financially nonviable Baby Boomers be given incentives (free Botox, no estate tax) to kill themselves at 70. The proposal, meant only as a catalyst for debate on the issue, catches the approval of millions of citizens, chief among them an ambitious presidential candidate, Senator Randolph Jepperson.

It's been a decade or more since I last read it, but I remember it being pretty funny and insightful.