When Oakland, Calif., Mayor Libby Schaaf tipped residents off last year that immigration agents would be conducting enforcement operations, President Donald Trump called her actions a "disgrace."
A Republican congressman from Iowa proposed criminal penalties for officials in so-called sanctuary cities who make similar disclosures.
The acting Immigration and Customs Enforcement director at the time, Thomas Homan, said Schaaf was "no better than a gang lookout yelling 'police!' when a police cruiser comes in the neighborhood."
Then, in the last month, Trump himself announced impending immigration operations.
"Next week ICE will begin the process of removing the millions of illegal aliens who have illicitly found their way into the United States," Trump tweeted on June 17.
Trump later announced those operations were being postponed. But this week, sources in Washington say they are back -- with ICE expected to pursue at least 2,000 immigrants beginning Sunday.
The Trump administration, it seemed, had pulled a Libby Schaaf.
Critics say the tweets and leaks have removed the element of surprise for ICE.
"I've never seen anything like this, where they're highlighting an operation in advance," said John Sandweg, who headed ICE under President Barack Obama. "Those people who were in the agency criticizing the Oakland mayor, I don't think you can credibly say there's a distinction here between what the administration has done."
Schaaf said as much last month: "I ... find it a bit ironic that a president who was so critical of my informing my community about the potential of a raid has himself now warned the entire nation."