Jeffrey Clark pleaded guilty to a gun charge in July and served nearly 10 months in custody.
The city's board of supervisors is urging other cities and states, as well as the federal government, to follow suit.
Only two out of the 15 members of a group aimed at targeting white supremacist violence appear to be people of color.
Many lawmakers are only starting to acknowledge how common domestic terror and white supremacy are in the U.S.
As other Western democracies take steps to prevent violent far-right extremism, the Trump administration is moving backward.
The suspected shooter had a "target list" that included religious institutions and political organizations related to both major political parties, officials said.
The Florida man mailed bombs to Trump's critics and the media last year.
The mass shooting in El Paso "underscores the continued threat posed by domestic violent extremists and perpetrators of hate crimes," the FBI said in a statement.
The pop singer attacked the president's response to the Gilroy, Dayton and El Paso shootings in a post to her almost 74 million Instagram followers.
Federal prosecutors are investigating the Saturday shooting that left at least 22 dead in a Texas Walmart as domestic terrorism and a possible hate crime.
A recent intelligence bulletin comes as the FBI is facing pressure to explain who it considers an extremist, and how the government prosecutes domestic terrorists.
FBI Director Christopher Wray said white supremacist violence motivates the majority of these cases the bureau investigates.
The latest setback in a domestic terrorism-related case shows how much tougher it is for the feds to prosecute neo-Nazis than Muslim extremists.
“Terrorism moves at the speed of social media,” an FBI official said. “The flash to bang has become even shorter.”
The government said Christopher Hasson was plotting to “murder innocent civilians on a scale rarely seen in this country.”
"This puts me in danger every time," the New York congresswoman said, noting that such "uncalled for rhetoric" was fueling death threats against her.
The debate over a federal domestic terrorism law, explained.
Experts say the mosque massacre spotlights New Zealand's failure to take white supremacist threats seriously.
After the arrest of an alleged white-supremacist terrorist in the Coast Guard, Jeh Johnson said the shift away from domestic threats was "going in the wrong direction."