Senate Rule XIX probably hasn't been invoked in nearly 40 years
Senate Rule XIX is invoked so rarely that the last time reporters on Twitter were able to find it used was in 1979, when one old white man called another an "idiot." Which, to be fair, seems like a much more proper use of the rule.
1979: John Heinz (R-PA) invoked Rule XIX after Lowell Weicker (R-CT) called him “an idiot” and “devious.” Robert C. Byrd worked out a truce pic.twitter.com/G3UEOcDPjF
— Greg Giroux (@greggiroux) February 8, 2017