mark shields and michael gerson are here to analyze the week's news. all that and more, on tonight's pbs newshour. >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us. >> the ford foundation. 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 possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: investigators in france are trying to piece together what sparked thursday's deadly assault in paris. a gunman shot a police officer to death and wounded two more, before being killed himself. hari sreenivasan reports on the day's developments. >> reporter: masked police descended this morning on a paris suburb, home of the suspect in the deadly attack on the champs-elysees. prosecutors identified him as karim cheurfi, a french citizen, and said he carried a note in supp

as my colleague michael gerson says in his column today in "the washington post," that people take sometimesility as license to push the united states to see how far, how much can we get away with and that's a situation we could be in now where you've got the u.n. ambassador saying one thing, the secretary of state saying another thing, the white house press secretary saying something else and then who knows, the president could tweet something completely different. >> yeah. the irony is they may be decisive in that initial strike, there appears to be indecision in terms of what they plan to do going forward. nice to see you. >> i appreciate it. >> coming up next here, we will take you to andrea mitchell reporting today live from moscow, a look at what is on tap for rex tillerson's next 24 hours in russia as he prepares to meet with that country's foreign minister. you are watching "andrea mitchell reports" only on msnbc. boost. it's about moving forward, not back. it's looking up, not down. it's being in motion. in body, in spirit, in the now. boost® high protein it's intelligent nutrition

. >> michael gerson. thank you for joining us. >>> we're turning to politics here at home.not just republican lawmakers getting an earful in their districts. democrats too, they're fired up. and so are their voters. more on that when we come back. you totaled your brand new car. nobody's hurt, but there will still be pain. it comes when your insurance company says they'll only pay three-quarters of what it takes to replace it. what are you supposed to do? drive three-quarters of a car? now if you had liberty mutual new car replacement™, you'd get your whole car back. i guess they don't want you driving around on three wheels. smart. with liberty mutual new car replacement™, we'll replace the full value of your car. liberty stands with you™. liberty mutual insurance. don't let dust and allergens and life's beautiful moments. flonase allergy relief delivers more complete relief. flonase helps block 6 key inflammatory substances that cause all your symptoms, including nasal congestion and itchy, watery eyes. flonase is an allergy nasal spray that works even beyond the nose. so