De Blasio on CPT

“Thanks for the endorsement, Bill,” Mrs. Clinton said to Mr. de Blasio, a former aide to Mrs. Clinton when she was a senator from New York who nonetheless dallied in supporting her. “Took you long enough.”
“Sorry, Hillary,” Mr. de Blasio said. “I was running on C.P. time,” a reference to the stereotype “Colored People Time” that drew some cringes from the audience.

De Blasio said it was a scripted joke where the punchline, that Hillary eventually gave, was "cautious politician time".

What have we learned from this, people? We have learned not to tell jokes with Hillary Clinton because she has no sense of comedic timing.