Matt Mackowiak, another GOP strategist, tweeted: "There is only one response for Trump to the criticism: 'As an American, I deeply appreciate the patriotic sacrifice of the Khan family."'
On Friday, Khizr Khan blasted Trump's rhetoric on Muslims and immigrants. Pulling his pocket version of the US Constitution from his jacket, he questioned whether Trump has read the document. "You have sacrificed nothing and no one," Khan said.
Trump pointed to the sacrifices he has made as a businessman: "I think I've made a lot of sacrifices. I work very, very hard. I've created thousands and thousands of jobs, tens of thousands of jobs".
The backlash was swift. "Trump revealed exactly who he is in this answer and it's not pretty. A man this callous and cruel can't be President," former President Barack Obama senior adviser Dan Pfieffer tweeted. Paul Rieckoff, the founder and chief executive of Iraq and Afghanistan Veterans of America, told ABC that Trump's comparison of his own sacrifice to that of war veterans is an insult.
In a statement titled "Setting the Record Straight," Trump called Humayun Khan a "hero" but rejected his father's accusations.
"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."
Trump avoided the draft during the Vietnam War through several student deferments. He was later medically disqualified from service.
"He's a person that has no self-control. He just has no sense of decency or empathy when it comes to dealing with others," said Tim Miller, a veteran GOP strategist. "It's always zero sum. You compliment me, I compliment you. You criticise me, I mock you ... It's all about him and his egotism."
While campaigning in Colorado, Trump was rescued from lift that was stuck between the first and second floors of the Mining Exchange resort. Firefighters opened the top lift hatch and lowered a ladder. Trump and about 10 others used the ladder to climb out.
- Washington Post, AP