GOP presidential front-runner Donald Trump said in an interview broadcast Sunday morning that the U.S. cities with the strongest gun laws often have "tremendous gun violence and death."<br />"You take Chicago, you take Baltimore, you take various other places where you have tremendous gun violence and death," Trump said.<br />"The strictest laws in the United States- in the world- for guns happens to be Chicago where they have a lot of problems.<br />Baltimore, a lot of the places where you have the biggest problem is where they have the strongest laws."<br />"I don't think it's about laws," Trump said during a gun control discussion in the wake of a mass shooting inOregon that left nine people dead.<br />"The strongest, the most stringent laws are in almost every case the worse places.<br />It doesn't seem to work.<br />It's a tough situation," Trump added.<br />"And when it comes to the schools, it really is mental health.<br />It's a mental problem."<br />Trump said he watched President Obama's statement following the Umpqua Community College rampage and said he understands "exactly what he's saying."