Paul Manafort did not mince words in his first Sunday show interview since he became Donald Trump’s convention manager, accusing Ted Cruz’s campaign of pursuing “gestapo tactics” to try to win over delegates. “You go to these county conventions, and you see the Gestapo tactics—the scorched-earth tactics,” Manafort said on NBC’s Meet the Press. When he was asked whether threatening delegates is fair game, Manafort said: "It's not my style, and it's not Donald Trump's style … But it is Ted Cruz's style."

Although Manafort did not specify what specifically the Cruz campaign had done to remind him of the Nazi secret police, he did say the campaign would be issuing formal complaints. “We’re going to be filing several protests because the reality is, they are not playing by the rules,” he said. “If they don’t get what they want, they blow it up. That’s not going to work.”

Manafort spoke the day after Trump’s campaign was soundly defeated by Cruz’s team in Colorado and South Carolina on Saturday. The “crushing losses,” as Politico calls them, make it even less likely that Trump could win at a contested convention. Cruz picked up all final 13 delegates up for grabs in Colorado on Saturday, meaning he has won all 34 delegates in the state. On Saturday, the organization of Cruz’s campaign was a stark contrast to Trump’s team, which made “basic mistakes,” notes the Guardian.

In South Carolina, Trump managed to pick up just one of six delegates on the ballot in the state’s 3rd and 7th congressional districts. The real estate mogul won the South Carolina primary by 10 points on February 20.

Trump took to Twitter on Sunday to complain about “unfair” efforts by the Cruz campaign to win over delegates.

"We're supposed to be a democracy," Trump told supporters on Sunday, but "the system is corrupt and it's worse on the Republican side."

The Cruz campaign replied saying Trump’s team was trying to change the subject in order to “distract from their failure.”

“It's no surprise that Trump's team will lash out with falsehoods when facing a loss to distract from their failure, as they have the entire time," said campaign spokeswoman Catherine Frazier. “We have earned our success by working hard to build a superior organization and are working within the process and rules that have been established—which has led now to four consecutive wins, 12 wins total.”