White House press secretary Sarah Huckabee Sanders told American Urban Radio Networks's April Ryan she was "starting to regret" calling on her first after the reporter repeatedly tried to ask a follow-up question during Monday's press briefing.

The back-and-forth between Sanders and Ryan, who have battled in the past, began after the press secretary answered a question from Ryan regarding North Korea.

“And lastly, this back and forth Twitter," Ryan said following Sanders's North Korea answer.

“I’m sorry, April. I’m going to keep moving," Sanders injected.

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“I understand. But this is a hot story. Does the President regret," Ryan said before Sanders stopped her.

“I’m sure that one of your colleagues will happily ask," Sanders said.

“Does the President regret his tweet —," Ryan pressed.

“April, I’m starting to regret calling on you first," Sanders said.

“You’re thankful for all of us," Ryan shot back in reference to Sanders's earlier comment that she was thankful for the White House press corps heading into the Thanksgiving holiday.

“I am, but I don’t want that to go away, so I’m going to call on one of your colleagues. Francesca, go ahead," Sanders said to Francesca Chambers of the Daily Mail.

Sanders and Ryan tangled earlier this month after Ryan asked if the Trump administration believed "slavery is wrong."

"Does this administration believe, does this president believe slavery was wrong?" Ryan asked on Nov. 1.

"I think it is disgusting and absurd to suggest that anyone inside this building would support slavery," Sanders said.