Article continues below advertisementJimmy Kimmel didn't need a hosting gig to dominate the Oscars conversation this year. With just a few minutes onstage, the late-night host delivered one of the ceremony's most talked-about moments, taking aim at CBS, President Donald Trump, and Melania Trump's documentary in a string of jokes that quickly reverberated beyond Hollywood.What began as a routine presenter appearance turned into a flashpoint in the ongoing culture clash between late-night comedy and political power.