Meghan McCain, the daughter of Senator John McCainJohn Sidney McCainBiden falters in pledge to strengthen US alliances 20 years after 9/11, US foreign policy still struggles for balance What the chaos in Afghanistan can remind us about the importance of protecting democracy at home MORE (R-Ariz.), defender her father on Twitter Thursday after President Trump criticized him.

"Trump has never served. My father can't bend one of his knees or lift one of his arms above his head. I am done with this today. DONE. Disagree with politics ANY single day but how dare anyone question the honor of my father and his service," McCain tweeted, a reference to injuries Sen. McCain suffered as a prisoner of war in North Vietnam.

President Trump attacked McCain on Twitter Thursday for criticizing a Trump-authorized raid in Yemen as a "failure." The raid resulted in the death of a Navy SEAL, as well as several children and other civilians, including an 8-year-old American girl.

Meghan McCain's tweets appeared to be in response to both Trump's criticism and attacks from Fox News and CNN commentator Carl Higbie, who took Trump's comments a step further by calling Sen. McCain "dishonorable."

Trump tweeted Thursday morning that McCain's criticism of the raid encouraged terrorists.

“Sen. McCain should not be talking about the success or failure of a mission to the media. Only emboldens the enemy!” Trump tweeted. 

“He's been losing so … long he doesn't know how to win anymore, just look at the mess our country is in — bogged down in conflict all over the place. Our hero ... Ryan died on a winning mission (according to General Mattis), not a 'failure.' Time for the U.S. to get smart and start winning again!” he added.


McCain on Wednesday responded to White House criticism, invoking his own story as a prisoner of war. McCain's remarks came after White House spokesman Sean Spicer said that criticizing the raid's effectiveness was a "disservice" to the deceased SEAL.

“Many years ago, when I was imprisoned in North Vietnam, there was an attempt to rescue the POWs,” McCain said. “Unfortunately, the prison had been evacuated, but the brave men who took — risked their lives in an effort to rescue us prisoners of war were genuine American heroes.

“Because the mission failed did not in any way diminish their courage and willingness to help their fellow Americans who were help captive. Mr. Spicer should know that story.”

The casualties surrounding the raid inspired the head of al-Qaida's Yemen branch to release a tape mocking Trump, who claimed to be the Navy SEAL's actual target.