A change of rules on Capitol Hill. Using the so-called "nuclear option," Democratic-controlled Senate stripped the ability of Republicans to block presidential nominations.<br/> <br />Now, the Senate needs a vote of only 51 - from 60 - to end filibusters against presidential nominees. The new rule won't apply to Supreme Court nominees.<br/> <br />Historically - filibusters have been used to delay executive and judicial nominees from assuming their roles - a tool President Barack Obama called "reckless and relentless."<br/> <br />(SOUNDBITE) U.S. PRESIDENT BARACK OBAMA SAYING:<br/> <br />"The vote today I think is an indication that a majority of Senators believe, as I believe, that enough is enough."<br/> <br />The move came after Democrats' frustration at Republicans for using the filibuster to block Obama's appointments to the D.C. U.S. Court of Appeals -- the nation's second highest court.<br/> <br />Senate Majority Leader Harry Reid.<br/> <br />(SOUNDBITE) SENATE MAJORITY LEADER HARRY REID SAYING:<br/> <br />"But today
