WASHINGTON >> For U.S. presidents, meeting the families of military personnel killed in war is about as wrenching as the presidency gets. President Donald Trump’s suggestion Monday that his predecessors fell short in that duty brought a visceral reaction from those who witnessed those grieving encounters.

“He’s a deranged animal,” Alyssa Mastromonaco, a former deputy chief of staff to President Barack Obama, tweeted about Trump. With an expletive, she called Trump’s statement in the Rose Garden a lie.

Trump said in a news conference he had written letters to the families of four soldiers killed in an Oct. 4 ambush in Niger and planned to call them, crediting himself with taking extra steps in honoring the dead properly. “Most of them didn’t make calls,” he said of his predecessors. He said it’s possible that Obama “did sometimes” but “other presidents did not call.”

The record is plain that presidents reached out to families of the dead and to the wounded, often with their presence as well as by letter and phone. The path to Walter Reed and other military hospitals, as well as to the Dover, Delaware, Air Force Base where the remains of fallen soldiers are often brought, is a familiar one to Obama, George W. Bush and others.

Bush, even at the height of two wars, “wrote all the families of the fallen,” said Freddy Ford, spokesman for the ex-president. Ford said Bush also called or met “hundreds, if not thousands” of family members of the war dead.

Obama’s official photographer, Pete Souza, tweeted that he photographed Obama “meeting with hundreds of wounded soldiers, and family members of those killed in action.” Others recalled his frequent visits with Gold Star families, and travels to Walter Reed, Dover and other venues with families of the dead and with the wounded.

Retired Gen. Martin E. Dempsey, the former chairman of the Joint Chiefs of Staff, confirmed these contacts, tweeting: “POTUS 43 & 44 and first ladies cared deeply, worked tirelessly for the serving, the fallen, and their families. Not politics. Sacred Trust.”

Trump addressed the matter when asked why he had not spoken about the four soldiers killed in Niger. They died when militants thought to be affiliated with the Islamic State group ambushed them while they were patrolling in unarmored trucks with Nigerien troops.

“I actually wrote letters individually to the soldiers we’re talking about, and they’re going to be going out either today or tomorrow,” he said, meaning he wrote to the families of the fallen soldiers. He did not explain why letters had not been sent yet, more than a week after the attack.

“If you look at President Obama and other presidents, most of them didn’t make calls,” Trump said.

Pressed on that statement later, he said of Obama: “I was told that he didn’t often, and a lot of presidents don’t. They write letters.” He went on: “President Obama, I think, probably did sometimes, and maybe sometimes he didn’t. I don’t know. That’s what I was told. … Some presidents didn’t do anything.”

Press Secretary Sarah Huckabee Sanders said later that Trump “wasn’t criticizing predecessors, but stating a fact.” She argued that presidents didn’t always call families of those killed in battle: “Sometimes they call, sometimes they send a letter, other times they have the opportunity to meet family members in person.”

She said anyone claiming a former president had called every family was “mistaken.”

Bush’s commitment to writing to all military families of the dead and to reaching out by phone or meeting with many others came despite the enormity of the task. In the Iraq war alone, U.S. combat deaths were highest during his presidency, exceeding 800 each year from 2004 through 2007. The number fell to 313 in Bush’s last year in office as the insurgency faded. Bush once said he felt the appropriate way to show his respect was to meet family members in private.

Obama declared an end to combat operations in Iraq in August 2010, and the last U.S. troops were withdrawn in December 2011. As Obama wound down that war, he sent tens of thousands more troops into Afghanistan in 2009 and 2010, and the death count mounted. From a total of 155 Americans killed in Afghanistan in 2008, which was Bush’s last full year in office, the number jumped to 311 in 2009 and peaked the next year at 498. In all, more than 1,700 died in Afghanistan on Obama’s watch.

Among other rituals honoring military families, the Obamas had a “Gold Star” Christmas tree in the White House decorated with hundreds of photos and notes from people who had lost loved ones in war. Gold Star families visited during the holidays, bringing ornaments.

Trump visited Dover early in his presidency, going in February with his daughter Ivanka for the return of the remains of a U.S. Navy SEAL killed during a raid in Yemen, William “Ryan” Owens.

Trump’s relations with Gold Star families have not always been smooth, dating from his belittlement of the parents of slain U.S. soldier Humayun Khan, who was Muslim. Trump was angered when the soldier’s father, Khizr Khan, was given a platform to criticize him at the Democratic National Convention.

Owens’ grieving father said he didn’t want to talk with Trump at Dover. But the sailor’s widow, Carryn, attended Trump’s address to Congress and wept as he thanked her.

Associated Press writers Robert Burns and Jesse J. Holland contributed to this report.