Donald J. Trump’s Republican rivals are seeking to make a stand against him in the Nevada caucuses on Tuesday, their last chance to slow his momentum before a dozen states vote on the party’s presidential nomination next week.
But it may be difficult to stop Mr. Trump in Nevada, where he has enjoyed a high profile because of his business dealings in Las Vegas and where only a small number of voters have typically participated in the caucuses.
Senators Ted Cruz of Texas and Marco Rubio of Florida have established serious operations in the state, and both campaigned there in advance of Tuesday’s contest.
They may once again be battling for second place rather than for a real shot at dethroning Mr. Trump.