Islamic State is laughing at America: Trump

The Islamic State is laughing at America as the political leaders in the country have no effective strategy against the terror group, presumptive Republican presidential nominee Donald Trump said on Friday.

"We can't afford to be so nice and so foolish anymore. Our country is in trouble, the Islamic State is laughing at us," Trump told Fox News in an interview.

Trump lashed out political leaders, in particular Hillary Clinton, his potential Democratic rival in the November general elections, for not having an effective policy against the IS.

"I'm so tired of watching these politicians get up and say exactly what they're going to do with the IS. And in the meantime, the IS sits back, and they laugh and they go out and they prepare for it. You've got to hit people with a little surprise. There has to be some unpredictability," he said.

Trump said Clinton's allegation that his proposal to ban Muslims is promoting terrorists is the "dumbest" thing he ever heard.

"I just think it's absolutely dumb. In fact, if anything, it's just the opposite, because they're going to have to learn we can't take this anymore. And they're going to have to turn in the people that are bombing the planes. And they know who the people are," he said.

"And we're not going to find the people by just continuing to be so nice and so soft. And I have many Muslim friends and they agree. They have a tremendous problem with the radical Islamic terrorism, tremendous problem. And what she said is so dumb," Trump said.

Trump also attacked Clinton, in a series of tweets on Friday.

"Crooked Hillary has zero imagination and even less stamina. ISIS, China, Russia and all would love for her to be president. 4 more years!" he tweeted. 

"Look where the world is today, a total mess and ISIS is still running around wild. I can fix it fast, Hillary has no chance!" he said in another tweet.

"Crooked Hillary Clinton looks presidential? I don't think so! Four more years of Obama and our country will never come back. ISIS LAUGHS!," the billionaire said on the social media.

Trump's tweets were noted by the mainstream media.

"Why are you tweeting early, Donald," he was asked by MSNBC in an interview.

"Because I like tweeting. Because I like getting the word out. I think I have gotten the word out. You know, Hillary said some things and I said some things and now I go and I go back to work and I have a lot of fun," Trump said.

Trump denied that he is attacking Britain or its Prime Minister David Cameroon.

"I'm not attacking Great Britain. Where am I attacking Great Britain? I'm not attacking them at all. They asked me about the European Union. I said, frankly, it's none of my business. And I don't even like asking it -- answering it, but, frankly, if I were Great Britain, I'd get out of the EU. I see what happened with the great migration destroying Europe and EU had a lot to do with that. Personally, I would get out but I said I don't want that to influence the people of Great Britain," he said.

"I don't go after (Cameroon). You show me where? He came after me a little bit. And by the way, he would like me now to visit 10 Downing Street. They put out that invitation about two days ago. So I will do just fine with David Cameron. I think he's a nice guy. I will do just fine. But they have asked me to visit 10 Downing Street -- and I might do it," Trump said in response to a question.