If Twitter is a window on Donald Trump’s id, there’s one rival lurking there today: John Kasich.

Trump has started attacking the Ohio governor nearly around-the-clock on his feed as voters head to the polls in five states. Those attacks — along with Trump’s Ohio-heavy campaign schedule — shows how much winning the state matters to the business mogul.

Unfortunately for Trump, Ohio polls find him either tied or behind Kasich headed into Mega Tuesday. (A polling average calculated by RealClearPolitics finds Kasich leading by 3.4 points.) It doesn’t mean Trump can’t pull out a win, just that it will be harder than in Florida, for example, where he leads by an average of 18.3 points.

With more than 350 Republican delegates at stake on Tuesday, Trump is hoping for a clean sweep that will cement his path to the Republican nomination. To that end, here’s what he tweeted about Kasich over the last 24 hours:

Kasich, of course, is pursuing a completely different tone in his presidential campaign. Below is a sampling of what his campaign account tweeted today. No direct attacks on Trump? That’s exactly the point, it seems:

Bonus: here’s what Kasich passed out to voters at a rally Monday night: