JOHNSTOWN, Pa. -- With 100 days left before the fall presidential election, Democrat Hillary Clinton's campaign bus wound its way through Pennsylvania and Ohio, and Republican Donald Trump responded to criticism from the bereaved father of a Muslim Army captain.

Khizr Khan said in his speech at the Democratic National Convention in Philadelphia last week that Trump has "sacrificed nothing and no one" for his country.

"Who wrote that? Did Hillary's script writers write it?" Trump said in an interview with ABC's This Week to be broadcast today. "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, built great structures."

He added: "Sure those are sacrifices."

Khan, a lawyer with an advanced degree from Harvard Law School, lives in Charlottesville, Va. He said he wrote his own speech with no input from Clinton's campaign. In it, he paid tribute to his son Humayun, who posthumously received a Bronze Star and a Purple Heart after he was killed by a suicide bomber in Iraq in 2004.

Trump reiterated his criticism of Khan's wife, Ghazala, who stood silently beside her husband on the convention stage, wearing a headscarf.

"If you look at his wife, she was standing there," Trump said. "She had nothing to say. She probably, maybe she wasn't allowed to have anything to say. You tell me."

Ghazala Khan has said she didn't speak because of her grief and because she can't even look at photos of her son without crying.

In a statement that did not mention Trump, Clinton said she was "very moved" by Ghazala Khan's convention appearance.

"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," she said. "Captain Khan and his family represent the best of America, and we salute them."

Late Saturday night, Trump released a statement calling Humayun Khan "a hero," disputing Khizr Khan's characterization and attacking Clinton as unqualified to serve as commander in chief.

"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 said. "If I become president, I will make America safe again."

In Denver on Friday, Trump took on another critic from the Democratic convention, retired four-star Gen. John Allen, a former Marine Corps commandant who has endorsed Clinton.

"You know who he is? He's a failed general. He was the general fighting ISIS. I would say he hasn't done so well," said Trump, using an acronym for the Islamic State militant group. Allen led troops in Afghanistan and coordinated the international coalition fighting the Islamic State.

Clinton said at a wire manufacturing plant in Johnstown, Pa., that Trump's comments were not worthy of the presidency.

"Our commander in chief shouldn't insult and deride our generals, retired or otherwise," Clinton told a crowd gathered on the factory floor. "That should really go without saying."

Clinton, on a three-day bus tour through Pennsylvania and Ohio, is trying to win over some of the white, working-class voters who at one time made up a key piece of the Democratic Party's electoral coalition. In Pennsylvania, she visited an area that favored Republican Mitt Romney in the 2012 presidential race, though the state as a whole has voted Democratic in every presidential election since 1992.

Trump policy adviser Stephen Miller said Clinton visiting Johnstown "is like a robber visiting their victim."

Trump campaign chairman Paul Manafort added that Pennsylvania is "wide open," and that if Trump wins its 20 electoral votes, his path to victory would become "a lot more varied and hers more limited."

Trump has scheduled Monday stops in Columbus and Cleveland, Ohio. But he's also venturing into a pair of traditionally Democratic-leaning states: Maine and his home state of New York.

The two candidates also are fighting over Connecticut, Iowa, Nevada and Oregon.

While Clinton and her running mate, Virginia's U.S. Sen. Tim Kaine, worked to sell their positive economic message, much of their strategy centers on undermining Trump, particularly the business record that makes up the core of his argument to voters.

Joined on the bus tour by her husband, Bill Clinton, Kaine and Kaine's wife, Anne Holton, Clinton stopped at a toy and plastics manufacturer in Hatfield, Pa., on Friday, where she and Kaine cast Trump as a con artist out for his own gain.

Later at a rally in Pittsburgh, Clinton was introduced by Mark Cuban, the Dallas Mavericks owner and television personality who recently endorsed her.

"Leadership is not yelling and screaming and intimidating," he said.

Trump's strategy

Trump took Saturday off the campaign trail and focused on television interviews. Republican strategist Russ Schriefer said that approach has been effective with blue-collar voters.

"The Clinton strategy is to run the traditional race," Schriefer said. "Develop a ground game. Do your data and analytics. Run television ads. Do policy speeches. Meet with different interest groups that add to your coalition."

By contrast, he said, "the Trump campaign is going to continue holding big rallies and tweeting."

On Friday night, Trump tweeted that Clinton and the Democrats were trying to "rig the debates" by scheduling two of them at the same time as professional football games -- one on Sept. 26, a Monday, and one on Oct. 9, a Sunday. Trump said the NFL sent him a letter complaining about the debate schedule.

NFL spokesman Brian McCarthy tweeted Saturday: "While we'd obviously wish the Debate Commission could find another night, we did not send a letter to Mr Trump."

After the NFL's denial, a Trump aide said the Republican candidate "was made aware of the conflicting dates by a source close to the league." The aide was not authorized to speak by name and requested anonymity.

The independent, nonpartisan Commission on Presidential Debates, which has organized the debates since 1988, said that no political party or campaign was consulted when the dates were selected last year.

Trump also intends to deliver policy speeches in August. The speeches will be aimed at impressing ordinary voters more than think-tank experts, with Trump using basic, consumer language to explain how his presidency would improve people's lives, aides said.

Steven Cohen, professor emeritus of Russian studies at Princeton and New York University, credits Trump for focusing on issues ripe for discussion, including U.S.-Russia relations. He said that while Trump talks "elliptically" and "just can't wonk," the GOP nominee "in his own way seems to be advocating detente," which Cohen sees as an admirable goal.

Cohen said it's time for critics to stop using "McCarthyite" language to demonize Trump and have a serious discussion about the issues he's raising.

"It's called a debate," said Cohen. "You're supposed to have them in a presidential campaign."

But foreign policy experts "are left slack-jawed" by Trump's pronouncements praising Russian President Vladimir Putin and dismissing NATO countries that haven't "fulfilled their obligations" to pay, said Derek Chollet, a senior adviser at the German Marshall Fund and former Pentagon official in the Obama administration.

"He looks at the world solely through the prism of business transactions, talking about allies as if they're Atlantic City contractors that he can bilk," Chollet said.

Elsewhere, Trump is deploying his running mate, Indiana Gov. Mike Pence, to reassure conservative voters who remain uneasy about some of Trump's policy positions.

"I'm pro-life, and I don't apologize for it," Pence said during a town-hall meeting in Grand Rapids, Mich., last week. "We'll see Roe vs. Wade consigned to the ash heap of history, where it belongs."

Pence also campaigned in Wisconsin and Ohio last week.

"Our nominee and my new boss has tapped into the aspirations and frustrations of the American people like no one else in my lifetime since our 40th president, Ronald Reagan," Pence told hundreds of supporters in Grand Rapids on Thursday.

The Koch network

Pence also has the task of shoring up support within the Republican coalition, including with establishment donors with whom Pence has deep relationships.

Those donors won't include Charles Koch, the industrialist who has an expansive political network. That network won't spend anything to help Trump directly in 2016, even though it may evoke Clinton in attacks on Democratic congressional candidates, said Mark Holden, general counsel and senior vice president of Koch Industries.

None of the presidential candidates are aligned with the Koch network "from a values, and beliefs and policy perspective," Holden said.

"Based on that, we're focused on the Senate," Holden said.

The comments came Saturday, the first day in the three-day exclusive gathering at Colorado Springs, Colo., for donors who promise to give at least $100,000 each year to the various groups backed by the Koch brothers' Freedom Partners.

"I turned down a meeting with Charles and David Koch," Trump tweeted Saturday. "Much better for them to meet with the puppets of politics, they will do much better!"

It's unclear if Trump was invited. Holden declined to say whether the Kochs sought a meeting with Trump. No Trump representatives were participating in the event, even though Trump campaigned in Colorado Springs the day before.

In a statement released Saturday, the Colorado Springs Fire Department said that while Trump was in the city, he had to be rescued from an elevator stuck between the first and second floors of The Mining Exchange, a Wyndham Grand Hotel & Spa resort.

The department said it was called at 1:30 p.m. Friday to rescue about 10 people trapped in the elevator. The firefighters opened the top elevator hatch and lowered a ladder that Trump and the others used to climb out to the second floor. No injuries were reported.

"The party were model guests, but security insisted on having manual control of the elevators," said Perry Sanders Jr., an attorney who co-owns the hotel.

Trump later Friday attended a rally at the University of Colorado at Colorado Springs, where he criticized the city's fire marshal for limiting the number of people allowed to attend his speech. Fire Marshal Brett Lacey told the Colorado Springs Gazette that he had already agreed to allow a 10 percent increase in seating at the venue.

Information for this article was contributed by Lisa Lerer, Jon Lemire, Steve Peoples, Nancy Benac, Bradley Klapper, Jill Colvin, Douglass K. Daniel, Barry Wilner, Robert Burns and Deb Riechmann of The Associated Press; by Matt Flegenheimer of The New York Times; by Dan Balz, Philip Rucker and Paul Kane of The Washington Post; by Margaret Talev and Jennifer Jacobs of Bloomberg News; and by Seema Mehta of the Los Angeles Times.

A Section on 07/31/2016