Rand Paul Ribs GOP Rivals in Annual 'Airing of Grievances' on Twitter Rand Paul continues his Festivus tradition—this time against his GOP rivals.

 -- GOP presidential candidate Rand Paul (R-KY) continued his annual "airing of grievances" tradition today, in which he tweets lighthearted complaints about everything from wasteful government spending to alternate-side parking to people who mock his turtlenecks.

But this year Paul had a new target: his rivals for the GOP nomination.

The Festivus tradition grew out of an episode of Seinfeld. The Kentucky senator has made the gag his own in the last couple years, exploiting Twitter's town hall-like atmosphere and staccato pacing to rib fellow political figures.

This morning Paul began with — who else — Republican front-runner Donald Trump, whose sexually-derogatory reference to Democratic candidate Hillary Clinton at a campaign rally Monday night even included a dip into Yiddish:

Paul then proceeded to riff on the rest of the sizable Republican field, goofing on Sen. Ted Cruz's (R-TX) Canadian birth, Sen. Marco Rubio's (R-FL) reputation for missing Senate votes, and Dr. Ben Carson's sleepy debate demeanor:

Even Democratic challenger Bernie Sanders (I-VT) got the Festivus treatment: