"Unless you were a wunderkid when it comes to electrons, when it comes to the grid, when it comes to renewable energy, nuclear, when it comes to wind, geothermal, it's wealth and privilege that got you there," said Councilman Kevin de León, who's also running for mayor, to Caruso. "You have been a consummate insider. You actually are a politician. You always wanted to be a politician, and here you are today."
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Caruso responded swiftly calling De León's statements "personal attacks."
FULL VIDEO: Top 5 candidates face off in LA mayoral debate on ABC7
LA mayor race: 5 candidates face off during mayoral debate on ABC7
"Personal attacks seem to cloud the responsibility that people want to take like yourself," Caruso told De León.
Congresswoman Karen Bass, another mayoral candidate, also took aim at Caruso.
"Rick, you're the only one on this stage that actually has the personal wealth and resources to build affordable housing and as far as I know, I don't think that you have built any affordable housing," she said.
The candidates all said they would improve the relationship between the city and county when it comes to tackling homelessness just days after the head of the Los Angeles Homeless Services Authority (LAHSA) resigned in frustration.
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"In the county of 88 cities, the city of L.A. has had weak no-camping laws, so of course they all come to our city," said mayoral candidate and L.A. councilman Joe Buscaino.
City Attorney Mike Feuer, also a candidate, said he believes the composition of LAHSA needs to change.
"I think we should be having elected officials serving on it," said Feuer.
Bass believes both the city and county have attempted to reduce homelessness, but "have not made the commitment to end it."
"This is the United States of America, Los Angeles, California, and we are not going to allow our people to continue to die on the street," said Bass.
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León blamed broken windows policing those employed by the Los Angeles Police Department while Caruso led the police commission for criminalizing homelessness, which Caruso called a "grotesque lie."
Caruso then explained how he would address the rise in violent crime.
"Good policing is all about community policing," he said. "It's what I did 20 years ago while president of the police commission along with [former L.A. police chief Bill Bratton.] You have to build trust between the officers and the community, and that means community policing and senior lead officers."
All five candidates were asked whether they support L.A. County Alex Villanueva's bid for reelection, and all of them said they hadn't made a decision, except for Bass, who said no.