evidence: When I got into office, there were 650 murders a year in New York City. And I thought that my first responsibility was to give people the right to live. That's the basic right of everything. And we started -- we adopted a policy, which had been in place, the policy that all big police departments use, of stop and frisk. [...] BIDEN: Yes, let's get something straight. The reason that stop and frisk changed is because Barack Obama sent moderators to see what was going on. When we sent them there to say this practice has to stop, the mayor thought it was a terrible idea we send them there, a terrible idea. [...] WARREN: ... who are routinely cut out.