Author and crime expert John R. Lott Jr. says President Trump’s federal presence in Washington DC is bound to make a.dent in the city’s crime rate. Lott says it’s not that hard to see that the was to cut crime is to make it more costly for people to commit crime.  He says that can happen with more arrests and convictions, and harsher sentences, and allowing people to defend themselves.  Lott says that’s not happening in DC, which only has some 1,300 patrol officers. A burden he says will be eased by Trump’s deployment of some 800 National Guard troops. Lott is the author of More Guns, Less Crime, and spoke with the Salem Radio Network.