api.js

var loadSingleEntity = function(e) {
    var urls = [];
      
    urls.push(callAPI(buildURL(e)));
    urls.push(callAPI(url for committee info));
  

            $.when.apply($, urls).done(function() {
                var i,
                    len = arguments.length;
                e.results = {};

                for (i = 0; i < len; i++) {
                    if (i === 0){
                        e.results = arguments[i][0].results;
                    }
                    else {
                        // committee data
                        e.results[entitiesArray[i]] = arguments[i][0].results;
                    }
                }

                events.emit('render:singleEntity', e);
            }).fail(function() {
                events.emit('err:load:singleEntity');
            });
        });
}

buildCandidateContext.js

    buildCandidateContext: function(results) {
        // usual stuff...
        
        for (i = 0; i < len; i++) {
            newCandidateObj = {
                id: '',
                name: '',
                office: '',
                election: '',
                party: '',
                state: '',
                district: '',
                incumbent_challenge: '',
                nameURL: '',
                committee_name: ''
            };
            
            // more usual stuff...
            
            if (results[i] has a property that indicates there is associated committee data) {
                newCandidateObj.committee_name = whatever;
            }
            candidates.push(newCandidateObj);
        }

        return candidates;
    }