The mother of an American killed in the terrorist attack in Benghazi, Libya, said she was "treated like dirt" by Democratic presidential nominee Hillary Clinton about the death of her son.

"I was treated like dirt. I don't think the Khan family was treated that way, but I was treated like dirt, I was called a liar," Patricia Smith said in an interview with Brooke Baldwin on CNN.

Smith spoke at the Republican National Convention and mentioned Khizr and Ghazala Khan, parents of a fallen soldier in Iraq. Khizr spoke at the Democratic National Convention, and the family has since been criticized by Republican nominee Donald Trump, because Khizr spoke publicly at the podium while Ghazala stood alongside him.

Smith said she never received answers from Clinton concerning her son's death.

"She went on TV many times, nodding her head thinking that she is so wonderful and she knows everything and I know nothing and I was just imagining this," Smith said. "I don't imagine my son getting killed. I don't imagine that at all. But why would she say that to me and what would she say to the Khans? I don't know.

"I want answers and I want answers about why my son is dead and why she made the decisions that she made," Smith added. "I don't like her decisions. I don't think she'll make a very good — any kind of good of president."