Thisw Mike News Today

>> norah: new reporting tonight from our team. ♪ ♪ >> dangerously bad air still affects millions of americans are to wildfires in canada. >> this weekend enter early next week a system will come through, direct the smoke away from the u.s. >> in the eastern part of the country, ukrainian troops have stepped up offensive operations around the beleaguered city of bakhmut, which was only recently taken by russian troops. ♪ ♪ >> the main suspect in the disappearance of u.s. teenage...

President biden insisted to reporters he had no contact with the attorney general about the case. >> i have not spoken with him at all. i am not going to speak with him. no comment on what happened. >> reporter: the republican house speaker had a dire warning. >> this is going to disrupt this nation because it goes to the court of equal justice for all, which is not being seen today, and we are not going to stand for it. >> reporter: law enforcement officials tell cbs news the u.s. secret servic...