John Kasich agrees with Bernie Sanders on this one campaign issue. (Peter Stevenson/The Washington Post)

In a crowded Republican presidential field, finishing second in the New Hampshire primary gave life to John Kasich's campaign on Tuesday.

The Ohio governor had a miserable time in Iowa, where he won less than 2 percent of the vote and took just one of the 30 delegates up for grabs. But Kasich didn't expect to do well in Iowa; he always figured his message would resonate better with more-moderate New Hampshire voters.

At the center of that message is something that might sound familiar: Kasich says he wants to run an "issue-based" campaign that focuses on policy, rather than bluster. It's not hard to tell who that statement is aimed at; Ted Cruz, who won Iowa, and Donald Trump, who won New Hampshire, haven't been afraid to wade into verbal hostilities.

But what might be surprising is which other candidate sounds a lot like Kasich – and has been claiming a similar "issue-based" campaign even longer: Bernie Sanders.

If Bernie Sanders is the prototypical outsider candidate, John Kasich is decidedly not. He's governor of a Midwestern swing state, and a career politician who spent decades in Washington. But neither candidate started out with particularly high poll numbers, and both have come under increased scrutiny as their campaigns have gone on. That scrutiny will only get more intense after both had strong performances in New Hampshire.

While their politics are dramatically different, Kasich and Sanders each offer their party's voters something different than the presumed front-runners, Trump and Hillary Clinton. And by suggesting that they are the only candidates running positive campaigns, they hope they can exploit those differences.