Mr.Weasley scanned the front page while Percy looked over his shoulder.
"I knew it," said Mr.Weasley heavily. "Ministry blunders . . .culprits not apprehended . . .lax security . . .Dark wizards running unchecked. . . national disgrace . . .Who worte this? Ah. . .of course. . .Rita Skeeter."
"That woman's got it in for the Ministry of Magic!" said Percy furiously. "Lask week she was saying we're wasting our time quibbling about cauldron thickness, when we should be stamping out vampires! As if it wasn't specifically stated in paragraph twelve of the Guidelines for the Treatment of Non-Wizard Part-Humans..."
Harry potter and the goblet of fire
What's the meaning of the sentence marked in bold? I don't understand the part "got it in for".