President Obama called Wednesday for a new and tougher assault-weapons ban and a 10-round limit on magazines, as part of a comprehensive plan to curb gun violence that includes 23 steps he would take without congressional action. 

Already facing stiff opposition from gun-rights advocates and Republican lawmakers, the president called on Congress to pass several major changes to the country's current gun laws -- some of which are already being considered like the restrictions on semi-automatic weapons and high-capacity magazines.