John Kasich has refused to back down in the race for the Republican presidential nomination, but this weekend he came across his toughest competitor yet.

A pastrami sandwich.

'I can't eat anymore!' he declared at the famous PJ Bernstein Deli in New York's Upper East Side on Saturday. 'I've eaten so much!'

John Kasich refused to eat a pastrami sandwich after weeks of stuffing his face while campaigning in New York - but the Ohio governor couldn't say no when it came to the pickles

Kasich enjoyed the pickles while at PJ Bernstein Deli in New York's Upper East Side on Saturday

At one point he even admitted to wanting another pickle but said 'I don't want to read about it'

But there was no doubt in his mind, that the pickle had caught Kasich's eye

Kasich, 63, has been on a whirlwind culinary tour while campaigning in the Big Apple ahead of Tuesday's primary, stuffing his face with pizza, pasta and plenty of pickles.

But it seems to have finally caught up with the Ohio governor, whose massive appetite has been making up for his lack in delegates.

Kasich did manage to enjoy a bowl of kreplach soup and more than a few pickles before turning down the sandwich on Saturday.

'I really want another pickle,' he told someone. 'But I don't want to read about it.'

And it seems the governor still had plenty of room for dessert, deciding on an apple strudel.

Kasich made headlines at his very first New York food stop last month when he dared eat a pizza slice with a fork and a knife at Gino's Pizzeria and Restaurant in Queens.

Kasich did manage to try something other than the pickles at the deli, eating a bowl of kreplach soup

And although he refused the pastrami sandwich, Kasich was more than happy to make room for dessert

The fact that he was way behind in delegates probably did not even cross Kasich's mind as he beamed while eating the apple strudel

The governor quickly switched to his hands to finish it off and then enjoyed nearly two more slices and part of a sausage dish.

But that was merely a pregame for the true party that was about to happen in Kasich's stomach.

Last week he visited Mike's Deli in the Bronx and wowed bystanders as he went through a sample of Italian cold cut sandwiches, a plate of meats and cheese, and then two servings of pasta.

Kasich finished it off with some pasta fagioli and washed it all down with a glass of wine.

'This is like being so alive, being in New York,' he said as he ate.

Kasich has been making headlines for his incredible feasts in New York while campaigning these last few weeks. Here is the 63-year-old enjoying a spread at Mike's Deli in Bronx

Kasich wowed bystanders as he went through a sample of Italian cold cut sandwiches, a plate of meats and cheese, and then two servings of pasta

'This is like being so alive, being in New York,' he said as he ate

Kasich also made headlines when he dared to use a knife and fork for his first bite of New York pizza

Kasich finished two slices of pizza and part of a third and also enjoyed part of a sausage dish

His staffers also took some cannolis to go after the giant meal.

Kasich remains far behind both fellow GOP presidential hopefuls Donald Trump and Sen. Ted Cruz, but the governor has continued to remain hopeful of his prospects.

'At the end of the day, I think the Republican party wants to pick somebody who can actually win the fall,' he told the crowd at PJ Bernstein Deli, according to New York Daily News.

Kasich was recently endorsed by former Gov. George Pataki and remains second in most of the New York polls with 25 percent support compared to the 54 percent backing Trump.

'I think we're going to have momentum coming out of New York,' he said. 'And I think we're going to win delegates.'

Whether he'll win big remains to be seen but, win or lose, Kasich will at least feel full.