Edit in JSFiddle

$(document).ready(function () {
    $.getJSON("https://mysafeinfo.com/api/data?list=presidents&format=jsonp&rows=5&sort=id desc&callback=?", function (result) {
        //result now contains the requested data
        $("#jsonp").text(JSON.stringify(result));

        //loop through results
        $.each(result, function (i, obj) {
            //alert(obj.nm);
        });
    });
});
<div id="jsonp"></div>