The traditional rules do not seem to apply.
According to Can Donald Trump be stopped?, a February 24, 2016 article in the Washington Post:
Donald Trump has taken firm control of the race for the Republican presidential nomination with his third straight victory, in Nevada. To deny him that role, strategists say, his leading rivals must quickly change the trajectory of the race and then dig in for what could be a long battle that could go all the way to the GOP convention in Cleveland.Read the entire article HERE.
Strategists who have been through past nomination battles say that Sen. Marco Rubio (Fla.), Sen. Ted Cruz (Tex.) and Ohio Gov. John Kasich collectively have until March 15 to turn the race away from the New York billionaire. Each has a must-win test looming in his home state between now and then. But those victories alone might not be sufficient to block Trump’s path....
And according to The Republican Establishment Needs to Stop Worrying and Love the Donald, a recent Pajamas Media essay by Roger L. Simon:
Now that Donald Trump has wiped the floor yet again with the other Republican candidates in the Nevada caucuses, it's time for the GOP to face reality -- barring force majeure, they have a presidential candidate, like it or not.Read the entire essay HERE.
The so-called establishment has a choice: Get on the Trump bandwagon or try some desperate maneuver to stop him. But what would that be? A Rubio-Cruz ticket, assuming they would do it? At the time of this writing, the two men added together don't equal the Trump vote in Nevada -- and that's even assuming their voters would hold, which is a risky assumption, given the current momentum. I mean -- Donald won 46% of the Hispanics! Enough already....