Meyer, who received a Medal of Honor in 2011 for his bravery during a six-hour fight in Afghanistan, was referring to Khizr and Ghazala Khan, who gave a stirring speech about their son at the Democratic National Convention last week.
In an emotional moment during the DNC, Khan and his wife, parents of fallen U.S. Army Captain Humayun Khan, addressed Trump and his policies directly.
"You have sacrificed nothing and no one," Khan said. "If it was up to Donald Trump, he never would have been in America," he added, in reference to his son.
Trump promptly responded by rejecting Khan's comments and suggesting that the couple's Muslim faith might be the reason his wife stayed silent during their speech. Ghazala Khan later responded, saying that it was her grief, not her religion, that prevented her from speaking on her son's behalf.
"Without saying a thing, all the world, all America, felt my pain," she wrote in an op-ed for the Washington Post. "I am a Gold Star mother. Whoever saw me felt me in their heart."
Although Trump received an outpouring of backlash from both Democratic and Republican sides, the GOP's presidential nominee has maintained his position, tweeting that he feels attacked by the Khans.
"Mr. Khan, who does not know me, viciously attacked me from the stage of the DNC and is now all over T.V. doing the same – Nice!" he tweeted on Monday.
Mr. Khan, who does not know me, viciously attacked me from the stage of the DNC and is now all over T.V. doing the same - Nice!