text_1: Chris Christie advised U.S. President Donald Trump to attempt to provoke Joe Biden to stutter during their 2020 presidential debates. 
text_2: If you know and love a stutterer and you watched the presidential debate last night, within minutes it became obvious what was going on. Abusive tone of voice, rapid fire interruptions, zigzagging change of topic, personal insult and humiliation, and family pain are all tripwires that scramble a stutterer’s ability to speak. There was nothing unplanned or spontaneous in the President’s strategy. The bastards did not prep him to attack Joe. They prepped him to attack Joe’s disability hoping that by triggering his stuttering they might deceive an audience unfamiliar with the disability into thinking that Joe was stupid, weak, uncertain, confused, or lost to dementia.