By Keith Coffman DENVER (Reuters) - A group of Colorado county sheriffs, angry over two new state gun control laws passed in the wake of last year's mass shootings in Connecticut and Colorado, filed a federal lawsuit on Friday seeking to block the laws from going into effect. The two laws, passed by the state's Democratic-controlled legislature with scant Republican support, ban ammunition magazines that hold more than 15 rounds and require background checks for all private gun sales and transfers. All but 10 of the state's 64 county sheriffs signed onto the suit, filed in U.S. ...

DENVER (AP) — Colorado sheriffs upset with gun restrictions adopted in the aftermath of last year's mass shootings filed a federal lawsuit Friday, challenging the regulations as unconstitutional.