Posted at 5:21 PM on 19 Jan 2008 Hillary Clinton beat Barack Obama to win the Democratic caucuses in Nevada on Saturday, getting 51 percent of the vote compared to Obama's 45 (and John Edwards' dismal 4). The economy was the top concern among Nevada voters surveyed, but the environment may have played a role too. Clinton tried to gain an edge in the state by touting her pledge to shut down th ...