We probably shouldn't be surprised that Richard Corcoran is spending much more on his sanctuary city TV ad than originally thought.

Talk to rank and file Republican activists across much of Florida, and you won't find any single issue that fires people up more than the prospect of "sanctuary cities" popping up to protect or ignore undocumented immigrants rather than ensuring they wind up in the custody of ICE.

Florida House Speaker and likely gubernatorial candidate  Corcoran apparently thinks that issue could play a big role in winning him the GOP nomination against U.S. Rep. Ron DeSantis and Agriculture Commissioner Adam Putnam. His first ad is about his vow to stop sanctuary cities in Florida.

His political committee, Watchdog PAC, has spent $500,000 for media placement on Jan. 24 (plus another $34,000 for media production by Jamestown Associates, his consulting firm). That's five time more than what ad trackers first saw as Watchdog PAC's ad buy.

In fact, there are no sanctuary cities in Florida. But thanks to thanks to mayors such as Andrew Gillum of Tallahassee and Rick Kriseman of St. Petersburg sounding sympathetic to sanctuary cities, Corcoran is able to sound the alarm of a serious threat.

"Incredibly, some Tallahassee politicians want to make Florida a sanctuary state," he says in the TV spot.

The House has already passed a bill banning sanctuary cities in Florida, but supporters in the Florida Senate so far have not mustered enough support to get a bill out of committee.