“Many in legacy media love mass shootings,” Ms. Loesch said, eliciting nods and approving shouts. Addressing the reporters in the room, she said:“You guys love it. I’m not saying that you love the tragedy, but I am saying that you love the ratings. Crying white mothers are ratings gold.”

The incendiary dig was not much of a surprise at a conference that attracts a wide spectrum of right-wing groups and news outlets, many of which have honed the provocation of liberals into a fine, and sometimes profitable, art.

Still, some of Ms. Loesch’s other remarks — reiterating the N.R.A.’s arguments for defending the Second Amendment and calling for more guns in schools — drew a more tepid reaction from the audience, perhaps a sign of how the national outcry after the school shooting in Parkland, Fla., has become a backdrop for this week’s gathering.

It was her media attacks that played best, like when she said that she needed a security detail to leave the televised CNN town hall with gun violence survivors where she spoke on Wednesday night.

“There were people rushing the stage and screaming, ‘Burn her,’” Ms. Loesch said.

A CNN spokesman said on Thursday that the network’s security personnel accompanied all the town hall speakers, including Ms. Loesch, from the stage, and that Ms. Loesch also had her own private security. The spokesman did not say whether she had been threatened.

After Ms. Loesch’s remarks on Thursday, some journalists chafed at the idea that they were exploiting the deaths of children.

“The point of all of this is to say that people in the media aren’t real human beings with souls and families and feelings, which is disgusting,” Elise Foley, a reporter at HuffPost, wrote on Twitter.