Top Colorado Republicans are condemning GOP presidential nominee Donald Trump’s remarks about a Muslim family whose son was killed in Iraq.

But the state’s GOP U.S. Senate candidate, who has already endorsed Trump, says he’s still supporting the nominee, and a congressman in a tight race came under fire for refusing to say whether he plans to vote for Trump.

Meanwhile, Colorado Democrats and some veterans are hammering Republicans for failing to distance themselves further from the billionaire as his feud with the family raged on into its fourth day.

On Saturday, Trump tore into Khizr and Ghazala Khan, a Muslim family whose son, Army Capt. Humayun Khan, was killed in combat in 2004, after the couple appeared on stage last week at the Democratic National Convention on the same day Hillary Clinton accepted the Democratic nomination for president.

Waving a copy of the U.S. Constitution – since Khan’s speech, it’s climbed the bestseller list at online retailer Amazon – Khizr Khan criticized Trump’s call to ban Muslims temporarily from entering the United States and said Trump has sacrificed “nothing and no one.”

“I think I’ve made a lot of sacrifices. I work very, very hard,” Trump said in an interview over the weekend.

Trump also fired back that he was “viciously attacked” by Khizr Khan and suggested that the soldier’s mother, Ghazala Khan, had stood silently during her husband’s remarks because her religion forbade her from speaking.

Ghazala Khan has said in multiple interviews since Trump’s initial comments that she was too upset to speak and feared she might break down sobbing if she had.

Numerous Republicans and veterans organizations across the country have since lined up to rebuke Trump’s comments. In a lengthy statement, U.S. Sen. John McCain, the 2008 Republican presidential nominee, said he strongly disagreed with Trump and that the GOP nomination did not confer an “unfettered license to defame those who are the best among us.” The Veterans of Foreign Wars on Monday called Trump’s attack “out-of-bounds.”

Also on Monday, Colorado’s Republican U.S. Senate nominee Darryl Glenn, a retired Air Force lieutenant colonel and a strong Trump supporter, laid into the GOP nominee, though he said the remarks about the Khans weren’t enough to cost Trump his endorsement.

“I completely disagree with Donald Trump’s statements; the only thing anyone should say to these Gold Star families is: thank you for your sacrifice,” Glenn said in a statement. “That said, I still believe Donald Trump would make a better president than Hillary Clinton.”

Glenn, an El Paso County commissioner, spoke to the crowd briefly before Trump took the stage at a campaign event in Colorado Springs on Friday.

The campaign spokesman for U.S. Sen. Michael Bennet, the Democratic incumbent running against Glenn, declined to weigh in on the matter, but the Colorado Democratic Party pulled no punches on Tuesday afternoon.

“Darryl Glenn campaigns with Donald Trump, calls Trump a ‘patriot’ and says it is his ‘personal responsibility’ to see Trump become president, but when Trump repeatedly shows he is unfit to be our president by praising Vladimir Putin, insulting entire populations of people, demeaning women, or, in the most recent case – making despicable comments about the parents of a fallen Gold Star soldier – Glenn refuses to say a word. Glenn’s silence is deafening, and he owes it to Coloradans to immediately denounce Trump’s hateful rhetoric,” said Chris Meagher, communications director for the state Democrats, before Glenn’s statement criticizing Trump had been widely circulated.

U.S. Rep. Mike Coffman, an Aurora Republican and Marine combat veteran who served in Iraq, condemned Trump’s comments over the weekend in an interview with The New York Times.

“Having served in Iraq, I’m deeply offended when Donald Trump fails to honor the sacrifices of all of our brave soldiers who were lost in that war,” Coffman said.

That wasn’t enough for Coffman’s Democratic challenger, state Sen. Morgan Carroll, whose campaign reiterated its demand on Monday that Coffman repudiate Trump in addition to castigating his statements.

“Even as the Trump campaign continues its spiral of racist, anti-Islamic rhetoric, Mike Coffman has refused to unambiguously state that he is not voting for Donald Trump in November,” said Drew Godinich, the Carroll campaign’s press secretary. “If insulting war heroes and his families isn’t enough to inform Mike Coffman’s decision, what will it take?”

In early February, the day after the Iowa caucuses, a campaign spokeswoman told The Colorado Statesman that Coffman “obviously” would support the Republican nominee, a remark Democrats have trotted out regularly ever since. Coffman, who endorsed Florida Sen. Marco Rubio early on in the Republican presidential primaries, has been highly critical of Trump’s rhetoric and tone and in May said Trump “has a long way to go to earn the support of many – me included.”

In a statement issued Monday, Carroll praised the Khan family, lashed Trump and called the election “a choice between the values we aspire to, the values that Humayun embodied, and fear and hatred.” She posed a similar question to Coffman: “If Donald Trump’s hateful attacks on the family of this fallen hero can’t bring Mike Coffman to unambiguously say he will not vote for Donald Trump this November, then what will?”

The Coffman campaign draws a sharp distinction between what it describes as Coffman’s willingness to “stand up” to either Trump or Clinton and what a spokeswoman calls Carroll’s “rubber stamp” for Clinton on position after position.

Adding to the pressure on Tuesday, the Carroll campaign distributed a joint statement issued by five area veterans who criticized both Trump and Coffman.

“The men and women of the armed services put their lives on the line every day in service to their country. They deserve to be treated with respect – regardless of the color of their skin, their gender, or their religion,” said the statement, which was signed by Air Force veterans Major Everett Brinson, Staff Sgt. Charles E. Knox and Spec. Bernie Rogott, Marine veteran Corp. Tara Bu and Naval veteran Seaman Bob Barton.

“Donald Trump is not alone in his vicious attacks,” the statement continued. “Mike Coffman has proposed vetting Muslims who are serving in the military, and has spoken in front of an anti-Muslim hate group – an extreme position that runs counter to the very values that this country was built on, and that our military personnel fight for every day. Mike Coffman should unequivocally denounce Donald Trump and his vote this November, and make clear that he stands with veterans and their families.”

“There is no room in American politics to insult our Gold Star families,” said U.S. Sen. Cory Gardner in a statement to The Denver Post. Gardner, who hasn’t endorsed Trump, didn’t mention the name of his party’s presidential nominee.

– ernest@coloradostatesman.com