McCain shared a smiling photo of her late father, John McCain, which read, "I like people who don't lose Arizona." In the accompanying tweet, McCain called the meme "too funny."
The content of the meme appeared to be in response to previous comments Trump made about the late senator, who died in 2018 after a battle with cancer.
"I supported him for president. I raised a million dollars for him. That's a lot of money. I supported him. He lost. He let us down. He lost, so I never liked him as much after that 'cause I don't like losers," Trump said at the 2015 Family Leadership Summit, referencing the elder McCain's 2008 election loss to President Barack Obama. "... He's a war hero because he was captured. I like people that weren't captured, OK?'"