David Remnick criticized Donald Trump's response to a weekend of mass violence and the killings of Rob Reiner and Michele Singer Reiner after Trump posted on Truth Social linking Reiner to "TRUMP DERANGEMENT SYNDROME" and later repeated elements in public remarks.Remnick says Trump's commentary intensified the nation's pain and recounts that Los Angeles police arrested the Reiners' son, 32-year-old Nick Reiner, who is being held without bail amid an investigation that has cited past drug abuse and erratic behavior.The Truth Social post and a separate lawsuit Trump filed seeking at least $5 billion against the BBC have drawn bipartisan rebukes and fueled debate among pundits and analysts as lawmakers also wrestle with high-stakes policy fights over Affordable Care Act premium subsidies.