"I'm very disappointed in certain people, a particular one, for not having pushed this faster," Trump said during a White House press conference on Friday.

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"Let's not talk about it. What difference does it make? They should have pushed it faster," he said.

Trump has had a rollercoaster relationship with Ryan, who as Speaker of the then-GOP controlled House was responsible for helping push the party's priorities through Congress.

The House passed a funding bill for the fiscal 2018 that included $1.6 billion for the border, including around $1.3 billion for fencing. Late last year House Republicans passed a continuing resolution (CR) that included more than $5 billion for the wall, but it didn't clear the Senate.

It's not the first time Trump has lashed out at Ryan to argue that he didn't do enough to help construct the U.S.-Mexico border wall, which was a top campaign promise for the president.

Trump told The Daily Caller last month that Ryan went "lame duck" after he decided to retire after the 115th Congress.

"Well, I was going to veto the omnibus bill and Paul told me in the strongest of language, 'Please don't do that, we'll get you the wall.' And I said, 'I hope you mean that, because I don't like this bill,' " Trump told The Daily Caller.