Donald Trump talks to the press after speaking during the Republican Leadership Summit in Nashua, N.H., on April 18, 2015. (Jabin Botsford/The Washington Post)

There’s a new troll in town.

If you follow mogul Donald Trump on Twitter (guilty as charged) you’re aware of a common theme: He would be this land’s greatest president. We need him more than he needs us. And he thinks all the other candidates pale in comparison to his greatness.

Like the class bully on the school playground, Trump has taken to poking a stick repeatedly in the sides of the Republican presidential candidates. It’s the campaign strategy already employed by Sen. Rand Paul (R-Ky.) – social media aggressor – who thus far has been spared from Trump’s jabs. (Don’t mess with the kingpin?)

[Can Rand Paul troll his way to the White House?]

So Wednesday, with Ohio Gov. John Kasich the sort of GOP candidate du jour, Trump let fly this uppercut:

Now Trump has been on something of a war path to lay claim to “Make America Great Again,” as his personal campaign slogan. He accused Sen. Ted Cruz (Tex.) of copying it from him. And attacked Wisconsin Gov. Scott Walker for using it. (Trump actually filed an application to trademark the phrase in 2012 after the election, London’s The Daily Mail reported last week.)

[Yes, even billionaire Donald Trump has a super PAC. And he’s ‘very serious’ about running.]

Trump has reserved most of his virtual vitriol for former Florida governor Jeb Bush and Sen. Marco Rubio (Fla.), considered to be the top-tier candidates of the moment:

But he also went negative (though more Manny Pacquiao than Floyd Mayweather) on former Arkansas governor Mike Huckabee:

And away from Twitter, at an event in Iowa over the weekend, Trump also taunted businesswoman Carly Fiorina, saying she “carries her own bags now” because she “got fired viciously from Hewlett-Packard” and lost her money in her losing California Senate bid, according to the Des Moines Register.

For now, Trump is heckling from the cheap seats. Imagine if he gets in the ring…