Here's Washington Post columnist Marc Thiessen giving Trump the thumbs-up for his first 100 days in office:
"Trump did something in his first 100 days that his predecessor could not bring himself to do in his entire second term: He enforced Obama's red line against Syria's use of chemical weapons. When the Assad regime apparently used a toxic nerve agent on innocent men, women and children, Trump didn't wring his hands. He acted quickly and decisively, and in so doing restored our credibility on the world stage that Obama had squandered." (Forget the critics, Mr President. Your first 100 days have been just fine, Marc Thiessen, 24/4/17)
Note the word "apparently." This is Thiessen paying lip-service to 'allegedly'. Clearly, he doesn't want you to dwell on the implications of Trump acting on Asad's apparent use of chemical weapons. He just wants you to move right along and applaud the president for acting "quickly and decisively."
All you really need to know about Marc Thiessen is revealed in his appended bio, where he's described as "a fellow at the American Enterprise Institute, and the former chief speechwriter for president George W Bush."