WATCH: Former Mayor Rudy Giuliani lays out how to fix racial discord in the United States.
'Stop and frisk'
Days after riots in Milwaukee over another killing of a black man, GOP presidential nominee Donald Trump visited the city and its surrounding area for a town hall, a rally and fundraisers.
Joining the nominee on the trip was former New York City Mayor Rudy Giuliani, who famously implemented tough-on-crime police tactics like "stop-and-frisk."
A gas station set on fire by protesters during riots in North Milwaukee over the weekend. (AP Photo)
From Gotti prosecutor to 'America's mayor'
Before becoming mayor, Giuliani was a U.S. Attorney who prosecuted white-collar criminals and the Mafia.
Giuliani gained famed by sending mob boss John Gotti to jail for life, and that successful career as a prosecutor put him on the political stage. He won his first term as mayor in 1993, defeating incumbent David Dinkins.
His actions during and after the World Trade Center attacks led many to call him "America's mayor."
Law-and-order tactics work brilliantly.
Touts reductions in black homicide rates
Many black Americans believe tough "zero tolerance" police tactics disproportionally target the black community.
But Giuliani disagrees. "I reduced homicides the time I was mayor by 65 percent to 75 percent. There's no mayor in the history of probably any city that saved more African-American lives than I did."
Giuliani's blueprint for fixing race relations
He thinks that following relations between police and the black community needs to improve-- and if they follow his example, they could.
"In New York City we now have a majority non-white police department and I started that," he said. "Community policing is an important part -- police getting to know the community."
There is a burden on the people in the community to treat the police with respect.
But he stressed that improving the relationship is a two-way street. The police have a role to play, as does the black community.
"I mean, the police officer has a very tough job. And if he approaches you, you have to listen to him."
Giuliani says Black Lives Matter shares the blame for the state of racial discord, calling the loose affiliation of activist groups a "phony activist organization" because they focus on African-Americans who were shot by the police, and not on all the lives that are lost to gun violence.
"They are an inherently divisive organization," he said, because of their "focus of what they are concerned about, and their failure to be concerned about the overwhelming majority of blacks who are killed, and why they are killed."
Police move in on a group of protesters throwing rocks in Milwaukee. (AP Photo)
This country is in bad shape and its in bad shape because we have a president and a candidate for president who are so anti-police.
Giuliani also didn't hesitate to place blame at the feet of President Obama and Democratic presidential nominee Hillary Clinton.
Clinton: Trump is 'so dangerous'
Not surprisingly, Hillary Clinton doesn't agree. She argues that the Trump-Giuliani policies will only worsen race relations in America.
In her acceptance speech at the Democratic Party convention, Clinton said: "We need a president who can help pull us together, not split us apart.
"And that is why I believe Donald Trump is so dangerous. His campaign is as divisive as any we have seen in our lifetime."
We would surely indict her on conflict of interest
Would prosecute Clinton if he could
Giuliani also said that if he was still a prosecutor, he would press charges against Clinton for conflict of interest.
"We might as well indict her for bribery, we might as well indict the Clinton Foundation as a racketeering enterprise, RICO enterprise," he said.
No quid pro quo
During her time as Secretary of State, donors gave millions of dollars to the Clinton Foundation when they had business pending with the government. Many of those donations were not immediately disclosed.
The Clinton Foundation said the lack of disclosure was an oversight, and no one has proven that there was quid pro quo involved.
WATCH: Our interview with Donald Trump saying he is the law and order candidate.