Washington (CNN) President Donald Trump on Friday morning delivered a potentially fatal blow to a compromise immigration bill under development in the House.

Trump said on Fox News' "Fox and Friends" that he is not planning to sign the negotiated measure.

"I'm looking at both of them. I certainly wouldn't sign the more moderate one," Trump said when asked about the two bills teed up for votes next week -- the compromise and a conservative-preferred bill. "I need a bill that gives this country tremendous border security. I have to have that. We have to get rid of catch-and-release."

Republicans on Capitol Hill were caught off guard by the comment -- with many spinning it their own way. Moderates said they expected the White House to clarify the President wasn't rejecting the compromise, while conservatives hailed it as an indication that the bill needs to move further to the right.

The rejection of the compromise also contradicted messaging from the White House in recent days.

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