NEW YORK — NBC, Fox News Channel and Facebook all said Monday they will stop airing President Donald Trump’s campaign advertisement that featured an immigrant convicted of killing two police officers.

CNN had rejected the same ad, declaring it racist.

Asked before leaving for campaign rallies if he thought the advertisement was offensive, Trump said, “a lot of things are offensive. Your questions are offensive a lot of times.”

The ad has already likely been seen by more people than it would if it kept running. NBC aired it on the “Sunday Night Football” game between the New England Patriots and Green Bay Packers, which drew the highest overnight ratings of the franchise’s history. During football season, it’s usually the most-watched show on television, often with around 20 million viewers.

MSNBC also aired it on “Morning Joe” on Monday.

Released last week, the advertisement includes footage of Luis Bracamontes, a twice-deported immigrant from Mexico sentenced to death in California for killing two police officers. He’s seen smiling in a court appearance and saying, “I will break out soon and I will kill more.”

The ad says, without evidence, that “Democrats let him into our country.” It shows masses of people shaking at a fence, apparently trying to break it down, and ended with the tagline, “Trump and Republicans are making America safe again.”