The U.S. senate is set to hold an important vote on gun contols on Thursday.<br/> <br />But the vote's not about passing a bill...it's simply to decide whether it should even be allowed to the Senate floor for debate.<br/> <br />President Barack Obama has been campaigning to reduce gun violence since 20 children and six adults were killed in a massacre at a school in Connecticut in December.<br/> <br />But gun control is an emotionally charged issue, and 13 Republican senators say they'll use a stalling tactic known as a fillibuster to block attempts to bring the bill up for debate.<br/> <br />It's unclear if the majority democrats will even get the 60 votes needed.<br/> <br />(SOUNDBITE) (English) U.S. VICE PRESIDENT JOE BIDEN SAYING:<br/> <br />"But it appears that not only are some of the senators not willing to stand and be counted, they are prepared to stop anybody from being able to be counted. I mean it's almost mind boggling. I served in the Senate for 36 years and you got 13 senators including the minority
