Donald Trump’s niece said on Tuesday that the media missed why Iowa was bad news for the ex-president. Mary Trump, a frequent critic of her uncle Donald as well as their family, said on Tuesday that Iowa “showed Donald’s weakness.” “I caught key data that most of the media missed last night on Donald’s Iowa results,” she wrote. “It’s made me realize that NOW is the time to launch my 2024 nationwide campaign to stop Donald from winning the general election, and destroying our country.” Specifically, Mary Trump said that knowing “how awful he is, seeing Donald win anything just seems too much to…