"No, not at all. I have a very good history," Trump told NH1's Paul Steinhauser in an interview broadcast on CNN when asked if he's worried about inviting criticism.
"Well she was very nasty to me. And I was going to do it and I saw Chelsea [Clinton] sitting out in the audience and I just didn't want to go there," Trump told NH1. "I thought it would be too disrespectful."
But Trump said "We'll see what happens" in the next debate on Oct. 9.
"It's a hard thing to say in front of somebody's daughter," he said.

Trump surrogates have spent days indirectly bringing up Bill Clinton's past infidelity while crediting Trump for not addressing the issue during Monday night's debate.
Eric Trump said it took "courage" for Trump to avoid the issue, while Trump campaign manager Kellyanne Conway described Trump as "gracious."
When asked if his past relationships would be fair game if he brought up Clinton's, he responded: "I guess." But he argued the two were not the same. 
"[It's] a lot different than his, that I can tell you. We have a situation where we have a president who was a disaster and he was ultimately impeached over it, in a sense, for lying," Trump said.
"We'll see whether or not we discuss it," he added.
Trump has been married three times. He and his first wife, Ivana, had a highly publicized divorce after news broke that Trump had been having an affair with Marla Maples, who became his second wife. The couple divorced in 1999, and Trump married his current wife, Melania Knauss, in 2005.