President Trump's latest salvo comes after ripping Ryan on Thursday in what appeared to have been in response to the former Speaker's reported attacks on the president's character and governing style in a soon-to-be-released book.
In the book, Ryan reportedly said Trump "didn't know anything about the government".
In the book, "American Carnage", Ryan recalled his hard working relationship with the president. Mitt Romney, who was then the GOP nominee for president.
But that was not all, he continued his ranting in yet another tweet where he did not fail to mention that despite having the majority, Rayan blew it off owing to his poor judgments, lack of leadership skills and timing. "Couldn't get him out of Congress fast enough!", he added.
Mr Ryan condemns Mr Trump in American Carnage, by political reporter Tim Alberta.
According to the report, the book compiles stories and on-the-record quotes from prominent Republican officials who were critical of Trump before his election, some of whom later changed their tune.More news: Serena Williams, Andy Murray to play mixed doubles at Wimbledon
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I'm telling you, it's hard out there for a zombie-eyed granny starver.
Ryan told Alberta that Trump knew nothing about how government works when he became president in 2017. "I wanted to scold him all the time".
Right, why else would Ryan say Trump knows nothing about government, other than getting bribed to do it by a Politico reporter?
Site highlights each day to your inbox. And, truth be told, in his career in public office, Paul Ryan did at least as much damage to the country as the president* has. "Never knew how to go after the Dems like they go after us".
Following Ryan's retirement announcement previous year, Trump tweeted: "Speaker Paul Ryan is a truly good man, and while he will not be seeking re-election, he will leave a legacy of achievement that nobody can question. In return they would stand behind him unwaveringly". Ryan allegedly said in the book that he saw his withdrawal from Congress as an "escape hatch".
Ryan had no comment Friday on the president's tweets about him, his spokesman Brendan Buck said.
"We've gotten so numbed by it all", Ryan said. "Now I think he's making some of these knee-jerk reactions".
When Ryan chose to leave Congress a year ago - an unusual move for a House speaker heading into a hotly contested midterm - he cited a desire to spend more time with his family, though many pointed to his rocky relationship with Trump and differing policy goals.