the prostate cancer foundation funds lifesaving research. day. remember, it's your life. (police radio call) (sirens) (news report) (sirens) (news report) ♪ >>> this is "cbs news roundup." i'm shanelle kaul in new york. on capitol hill, leaders of the house of representatives have now chosen 13 lawmakers to lead a bipartisan inquiry into the attempted assassination of former president donald trump. all have backgrounds in national security and law enforcement. trump, himself, has agreed to be interviewed by the fbi in its investigation. meanwhile, cbs news is getting some new information about the timeline of that day and potential missed opportunities to stop the gunman before he pulled the trigger. cbs's scott macfarlane has more. >> reporter: newly released police text messages now show officers were aware of thomas crooks at least 105 minutes before he shot at former president donald trump. [ sound of gunfire ] >> get down, get down! >> reporter: over 30 minutes more than previously known. at 4:27 p.m., one countersniper texted his collea

the prostate cancer foundation funds lifesaving research. foundation, go to pcf.org today. remember, it's your life. >> shanelle: this is "cbs news roundup." i'm shanelle kaul in new york. former president donald trump spoke of uniting the nation as he formally accepted the republican party nomination for president. >> as americans, we are bound together by a shared destiny. we rise together, or we fall apart. >> this afternoon is a far cry from his previous statements promising retribution and how he would become a dicta day one. we spoke to some of trump's supporters to see how they interpret his controversial quote. >> the one thing is, i'm going to be a dictator. >> i said, no, no, no than the wall. we are closing the border and we are drilling, drilling for oil. >> he is saying, "i'm going to make up some executive order and they are going to change the direction that we are going." for some republicans, there are easy explanation >> this allows the termination of all rules, regulations. they are talking about the election fraud that he