"I've never been in this situation in 16 nearly 17 years in government where someone asked me to deflect when we absolutely knew something was awry - when the data was not correct" he said. "Then I took some time and I quit", Schwab said.
The San Francisco spokesman for U.S. Immigration and Customs Enforcement resigned after the agency's recent Northern California sweep, saying he couldn't continue to do his job after Trump administration officials made false public statements about a key aspect of the operation. They pointed to her public warning of a pending raid, which she issued on February 24, just as the operation was about to begin.
When ICE is seeking an illegal immigrant target and knows the person has been booked into a local prison or jail it will send a detainer request both asking to be notified before the person is released, and for the person to be held for up to 48 hours after the normal release point for pickup.
"Director Homan and the Attorney General said there were 800 people at large and free to roam because of the actions of the Oakland Mayor", he told CNN.
"It's the job of a public affairs officer to offer transparency for the agency you work for." he argued.
"I didn't feel like fabricating the truth to defend ourselves against (Schaaf's) actions was the way to go about it", he said. "To say that 100 percent are risky criminals on the street, or that those people weren't picked up because of the misguided actions of the mayor, is just wrong".
He explained that the enforcement agency would have been unlikely to capture all of the roughly 1,000 undocumented immigrants in the area that it had targeted, and that it was incorrect to identify those who were not detained as threats to public safety.
Meanwhile, President Trump, who called Schaaf a disgrace during a campaign rally in Pennsylvania, said ICE was prepared to arrest "close to 1,000 people", but only got "a fraction" of that thanks to Schaaf.
In addition to sparking criticism from the Trump administration, the case also prompted the government to look into whether Schaaf may have broken any laws by sounding the alarm about the pending raid - another front in the clash between federal officials and the leaders of sanctuary cities.
"While we disagree with Mr. Schwab on this issue, we appreciate his service and wish him well".
"Personally I think her actions were misguided and not responsible", Schwab told CNN. They blamed Schaaf's warning for ICE's failure to apprehend all of its targets-the raid resulted in around 200 arrests. It's a false statement because we never pick up 100 percent of our targets.
While most immigrants arrested by ICE in fiscal year 2017 were found to have criminal convictions, the most common criminal conviction among ICE arrestees was for driving under the influence of alcohol, with possession or distribution of "dangerous drugs" and other traffic offenses as the second and third most common convictions.
Schwab disputed the claims and told CNN he could no longer "bear the burden ― continuing on as a representative of the agency and charged with upholding integrity, knowing that information was false".
Schaaf has spent a great deal of time looking at ICE raids, meeting with ICE, and understanding what's going on.
Acting ICE director Thomas Honan said in an statement three days into the sweep that 864 people remained at large.
Mrs. Pelosi and other anti-Trump politicians have urged ICE to focus on illegal immigrants with what they deem serious crimes on their records, and forgo deporting most illegal immigrants.