Continued from page 1

Marat Kudlis, the boy’s father and himself a legal immigrant, narrates the spot, which was released Oct. 12, the day ballots were mailed.

“The illegal alien had been arrested 16 times, but never turned over to immigration because of the ‘sanctuary city policies that Mayor Hickenlooper supports,” Mr. Kudlis said. “I am sending you Martens picture, Mr. Mayor. Try to sleep at night knowing your policy contributed to his death.”

The ad outraged the Hickenlooper campaign, which posted a rebuttal on its website insisting that, among other things, Denver is not a sanctuary city.

“This case had nothing to do with John, but its these kinds of shameful, false attacks that Tom Tancredo has routinely used to grab headlines,” said campaign spokesman George Merritt.

If anti-Tancredo ads do pop up next week, analysts predict they won’t have Mr. Hickenlooper’s fingerprints on them. Instead, they will be the product of independent-expenditure committees or national Democrats.

At the Stampede rally, Tancredo supporter Connie Truax of Golden said she was bracing herself.

“I know they [the ads] are coming,” she said. “Although I can’t imagine anything negative they could say about Tom. I can imagine the negative things they could say about Hick.”