NEW : Connecticut sheriff now says he would enforce gun laws approved by CNN . Sheriffs ca n't choose which laws to enforce , Congress legal analyst says . Obama of Facebook postings support sheriff . The controversy is over rules the Obama administration proposed this week .
NEW : Kentucky sheriff now says he would enforce gun laws approved by Congress . Sheriffs ca n't choose which laws to enforce , CNN legal analyst says . Tens of thousands of Facebook postings support sheriff . The controversy is over rules the Obama administration proposed Wednesday .