During the primaries, Trump attacked Republican Senator Linsdey Graham, who had recently called Trump a “jackass.” Aside from calling Graham an “idiot” and “lightweight,” Trump also gave out Graham’s personal cell phone number.

Politico – Donald Trump gives out Lindsey Graham’s cellphone number
The Hill – Trump gives out Lindsey Graham’s phone number on stage
ABC News – Donald Trump Gives Out Lindsey Graham’s Cell Phone Number