"The police said they ve never seen anything quite as bad. So, we re handling it!" he tells PEOPLE

By Mary S. Park
April 06, 2010 09:30 AM
Credit: Andrew H. Walker/Getty

Even worse than messing with The Donald? Stalking his daughter.

“He s got really big problems, and the things he wrote and said were really terrible and at the worst level, where the police said they ve never seen anything quite as bad,” Donald Trump told PEOPLE at Monday’s 8th Annual Dressed to Kilt Charity Fashion Show at New York’s M2 Ultra Lounge in New York. The concerned father described the the extreme behavior of his daughter Ivanka’s stalker, Justin Massler, and assured PEOPLE that the family is dealing with the crisis: “He’s a really sick guy … So, we re handling it!”

Last week, a New York judge ordered Massler to stay away from Ivanka and her family before releasing him on $10,000 bail. Massler was arraigned on misdemeanor stalking and harassment charges after he was arrested in Nevada on a New York warrant.

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Ivanka’s older brother, Donald Trump Jr., shared his father’s concern. “I have a young family and, you know, I m not so worried perhaps for myself but clearly for them,” he said. “When you see what I saw and you hear what I see and you read what I read, it is a little disturbing.”

But he adds that his recently wed sister is “doing as well as can be expected.”