PHILADELPHIA, PA - JULY 28:  Khizr Khan, father of deceased Muslim U.S. Soldier, holds up a booklet of the US Constitution as he delivers remarks on the fourth day of the Democratic National Convention at the Wells Fargo Center, July 28, 2016 in Philadelphia, Pennsylvania. Democratic presidential candidate Hillary Clinton received the number of votes needed to secure the party's nomination. An estimated 50,000 people are expected in Philadelphia, including hundreds of protesters and members of the media. The four-day Democratic National Convention kicked off July 25.  (Photo by Alex Wong/Getty Images)
Alex Wong/Getty Images
PHILADELPHIA, PA - JULY 28: Khizr Khan, father of deceased Muslim U.S. Soldier, holds up a booklet of the US Constitution as he delivers remarks on the fourth day of the Democratic National Convention at the Wells Fargo Center, July 28, 2016 in Philadelphia, Pennsylvania. Democratic presidential candidate Hillary Clinton received the number of votes needed to secure the party's nomination. An estimated 50,000 people are expected in Philadelphia, including hundreds of protesters and members of the media. The four-day Democratic National Convention kicked off July 25. (Photo by Alex Wong/Getty Images)
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Story highlights

Donald Trump praised first lady Michelle Obama's Democratic convention speech

And he offered measured praise for President Barack Obama's address

Trump calls Capt. Humayun Khan a "hero"

CNN —  

Donald Trump rejected a Muslim lawyer’s assertion on the Democratic convention stage that the Republican nominee has “sacrificed nothing and no one.”

“Who wrote that? Did Hillary’s script writers write it?” Trump said in an interview with with ABC News’ George Stephanopoulos that will air Sunday. “I think I’ve made a lot of sacrifices. I work very, very hard.”

Khizr Khan, whose son Army Capt. Humayun Khan died in Baghdad in 2004, delivered one of the most powerful speeches of the Democratic National Convention. With his wife Ghazala at his side, Khan repeatedly blasted Trump’s immigration proposals – specifically those aimed at barring Muslims – and said the billionaire businessman has “sacrificed nothing and no one.”

Trump, in the ABC interview, said in response, “I’ve created thousands and thousands of jobs, tens of thousands of jobs, built great structures. I’ve had tremendous success. I think I’ve done a lot.”

Khan “was, you know, very emotional and probably looked like a nice guy to me,” Trump added.

Trump, in a statement released Saturday by his campaign, called Capt. Khan “a hero to our country and we should honor all who have made the ultimate sacrifice to keep our country safe.”

He argued that the “radical Islamist terrorists who killed him and the attempts by such people to enter the United States and “do us further harm” represent the “real problem.”

During his appearance at the Democratic National convention, Khizr Khan held up a copy of the U.S. Constitution and asked Trump if he has ever read it.

“I will gladly lend you my copy. In this document, look for the words, look for the words, liberty and equal protection (under) law,” Khizr Khan said.

Related: Who are the Khans?

In his statement, Trump took sharp offense, saying that “while I feel deeply for the loss of his son, Mr. Khan who has never met me, has no right to stand in front of millions of people and claim I have never read the Constitution, (which is false) and say many other inaccurate things.”

Clinton early Saturday evening issued a statement coming to Khan’s defense.

“I was very moved to see Ghazala Khan stand bravely and with dignity in support of her son on Thursday night. And I was very moved to hear her speak last night, bravely and with dignity, about her son’s life and the ultimate sacrifice he made for his country.

“This is a time for all Americans to stand with the Khans, and with all the families whose children have died in service to our country. And this is a time to honor the sacrifice of Captain Khan and all the fallen. Captain Khan and his family represent the best of America, and we salute them.”

Related: The moment Muslims have been waiting for

At a Clinton campaign appearance in Pennsylvania, lines about the Khan family were visible on a teleprompter, but she did not deliver them. Inquiries to the Clinton campaign about why went unanswered.

Still, a senior spokeswoman for the Clinton campaign, Karen Finney, took a sharper tone against Trump.

“Trump is truly shameless to attack the family of an American hero. Many thanks to the Khan family for your sacrifice, we stand with you,” tweeted Karen Finney, a senior spokeswoman for the Clinton campaign.

By Saturday afternoon Trump’s comparison of his own sacrifices to Khan’s had blown up on Twitter into a hashtag, #TrumpSacrifices. Users wrote satirically that the candidate had, among other things, been subjected to such hardships as flying commercial, playing golf on a public course and staying at a three-star hotel.

Trump previously responded more obliquely to Khan’s convention remarks, in a lightning-round interview with New York Times columnist Maureen Dowd.

“I’d like to hear his wife say something,” Trump said.

In a Friday evening interview on MSNBC, Ghazala Khan spoke briefly about her final interaction with her son, on Mother’s Day 2004, wishing him safety while serving in Iraq.

In the New York Times interview, Trump also opined on a range of Democratic convention speakers. He was sharply critical of former New York City Mayor Michael Bloomberg, an independent who threw his support behind Hillary Clinton and spoke to the Democratic convention. Trump called Bloomberg “a guy who didn’t have the guts to run for president.”

“He doesn’t know anything about me,” Trump said. “But he never had the guts to run. He probably wished he did but he didn’t. He spent millions of dollars on polling but he was missing one thing: guts.”

The two have been exchanging barbs this week after Bloomberg, who once considered entering the 2016 race as an independent, endorsed Clinton over Trump last weekend, then blasted Trump as a “dangerous demagogue” in Philadelphia.

As for President Barack Obama’s speech, which was laced with warnings about electing someone like Trump, the Republican nominee said it was “a good speech but not nearly as good as the press would have you believe.”

Still, in a rare moment of praise for the commander in chief – whom Trump has labeled “the most ignorant president” in history – Trump said that in “many ways,” he does “like” Obama.

“It’s hard to define. There’s something about him I do like. I’m embarrassed to admit it. I give him a lot of credit,” Trump said. “It’s very unique and very hard to do and I give him tremendous credit. He became a two-term president of the United States. He’s got some quality going.”

Trump also complimented the first lady’s convention remarks.

“She gave a very good speech,” Trump said.

CNN’s Dan Merica contributed to this report.