NEW YORK (CBSNewYork/AP) — Democratic presidential candidate Bernie Sanders is laying off hundreds of campaign workers, CBS News reported.

The layoffs came a day after Sanders lost four of five states that held primaries. He won Rhode Island, but rival Hillary Clinton took Maryland, Delaware, Pennsylvania and Connecticut.

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In a New York Times interview published Wednesday, Sanders said he wants to win as many delegates as possible and does not need workers in states around the country where the primaries are over. He told the newspaper he wanted to allocate resources in the 14 primary races still to come – most importantly in California – and thus, some staffers are no longer needed.

On Tuesday night, Sanders held a rally in West Virginia, where he continued to talk up the success his campaign has seen.

“The fight that we are waging is not an easy fight, but I know you are prepared to wage that fight against the 1 percent, against the billionaire class, and against a small number of people with incredible wealth and incredible power who control our economic life, our political life and our media life,” Sanders said.

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Despite his victory in Rhode Island, Sanders has fallen further behind Clinton in the delegate count – even as he insisted he was more electable.

“Our national polls which have us 15, 20 points ahead of Donald Trump, far more than Secretary Clinton,” he said.

The Vermont senator said earlier Tuesday that “we are going to fight all the way to the Philadelphia convention.” But when pressed on whether he’d continue in the race even if Clinton secures enough delegates for the nomination, he said, “We are going to fight through California and then we’ll see what happens.”

In an interview on CNN Tuesday, he said, “We’re in this until the end.”

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