Donald Trump’s victory in Nevada was huge. Together, Ted Cruz and Marco Rubio could not muster more voters than The Donald. Looking ahead at the polls, Trump looks hard to beat.

Trump crushes Rubio in Florida. He’s beating Kasich in Ohio. Cruz is leading in Texas by a lot, and in Arkansas and New Mexico by a little — that is before this latest loss. The rest of the map if filling up Trump. The “moderate” states in the Northeast? Trump. The Midwestern middle? Trump. The deep South? Trump.

Trump, Trump, nothing but Trump.

And yet, to date, Super PACs have spent $215 million in ads and mailers, and just 4 percent of that in attacking Trump.

If any of the other guys wants to be president, they had better focus on beating Trump, not each other, starting today.

Maggie Gallagher is a senior fellow at the American Principles Project.