Republican presidential front runner Mitt Romney reached for his second straight campaign victory Saturday in Nevada caucuses so quiet that they produced little television advertising, no candidate debates and only a modest investment of time by the candidates.

Apart from Romney, who won the Florida primary earlier in the week, Texas Rep. Ron Paul was the only contender to make a significant effort in Nevada, while Newt Gingrich and Rick Santorum conceded defeat in advance.

A total of 28 Republican National Convention delegates was at stake in caucuses held across a sprawling state that drew little attention in the nominating campaign, but figures to be a fierce battleground in the fall between the winner of the GOP nomination and President Barack Obama. The state’s unemployment rate was measured at 12.6 percent in December, the worst in the country.