With yet another night of big primary wins behind him, Donald Trump may actually be able to defy the odds makers and secure the 1,237 delegates he needs to win the Republican presidential nomination on the first ballot at the convention in Cleveland. But, there's one thing Trump needs to do to solidify his existing support, win over many of the Republicans still objecting to him and clinch the nomination without a convention fight.
That thing is simply to start attacking Hillary Clinton, and only Hillary Clinton, from now until that convention and beyond. It's such a simple, no-brainer strategy that it's downright hard to understand why Mr. Trump didn't enact it as his sole focus months ago. Even after last night's victory, he's still spending most of his considerably large amount of daily free TV air time bashing Ted Cruz. This may be just as much of a reason that Trump has lost more than two dozen national polls to Mrs. Clinton as his comments about immigration and women.