that's syndicated columnist mark shields, and ramesh ponnuru of the "national review." david brooks is away. and hello to both of you on this friday night. we've got a lot going on and a lot to talk about. mark i'm goingu.o start with at, $75 billion of americanina goods, somewhat expected t then the president unleashed a barrage of critical simple -- cn china but slapping new tariffs on more than $500 billion worth of chinese goods. he was attacking the chairman of the federal reserve and often and on. what are we to mcke muh it? >> i wish i knew, judy, i wish i knew. it's a perrmanceewof staggering instability more than anything else. look, you look at the president attacking, his own chairman of the federal reserve. and comparing this,aying th st his damage to the united states greater threat than that of chairman xi. quite honestly, china is a human rights abuse of historic dimension, the million people, muslims in reeducation camps, religious persecution is so unfair unjust and unaccurate.bu that larger sense domestically, it's unnerving tos the unitates, to those

mark shields and ramesh ponnuru are here to analyze president trump's attacks on china and the u.s. federal reserve chair, the state of the 2020 democratic presidential field, and the legacy of conservative philanthropist david koch. all that and more, on tonight's pbs newshour. or >> munding for the pbs newshour has been provided by:ta >> orderinout.ou >> finding the west route. >> talking for hours. >> planning for shower >> you can do the things you like to do with a wireless planf design you. with talk, text and data. consumer cellular. learn more at >> babbel.llular.tv a language program that teaches spanish, french, italian, german, and more. >> financial services firm raymd james. >> the forfoundation. working with visionaries on the frontlines of social change worldwide. >> and with the ongoing support of these institutions: and friends of the newshour. >> this program was made n possible by the corporatr public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: the trade war between e u.s. and china escalated today, sending