Ryan, R-Wisc., is one of three congressional Republicans who have now contradicted Trump on the spying matter, including House Oversight and Government Reform Committee Chairman Trey Gowdy, R-S.C., and Senate Intelligence Committee Chairman Richard Burr, R-N.C.
In this May 10, 2018 photo, Speaker of the House Paul Ryan, R-Wis., meets with reporters during his weekly news conference on Capitol Hill in Washington.
Was the alleged informant in the Trump campaign a spy? "We still have some unanswered questions", he said.
Security officials have told the media that the use of informants, such as Halper, is not an illegal or unusual practice per se, and some, such as James Clapper, who was the Director of National Intelligence at the time of the investigation, claim that such data collection in the midst of a live political race was justified by the immediate threat of Russia's alleged meddling.
Department of Justice and FBI officials are planning another secret briefing for congressional leaders about investigators' use of confidential sources in the early stages of the Russian Federation investigation.
Trump-aligned Republicans are demanding documents.
On Mr. Trump's orders, the Department of Justice conducted two briefings for a handful of members of Congress after House Intelligence Committee Chairman Devin Nunes, R-Calif., had asked for documents concerning the informant. Still, Ryan said he thinks there's "more digging to do".
UK Supreme Court Rejects Legal Challenge to Northern Ireland Abortion Laws
The human rights group did not have the legal standing to make the appeal, the Supreme Court said in its ruling . But that decision was overturned in June previous year by three of Northern Ireland's most senior judges.
Last week, Gowdy, a former prosecutor, publicly defended the Justice Department's actions.
Initially, the Justice Department resisted providing Congress with the materials, fearing the source's life would be placed at risk, but it later chose to provide members with classified briefings to answer questions.
Ryan told reporters he's seen "seen no evidence to the contrary" of Gowdy's assessment that no such spy was planted. Nunes has said the committee is still waiting for documents, and Ryan backed him on that Wednesday.
Without evidence, Trump has accused the Federal Bureau of Investigation under then-President Barack Obama's administration of embedding an informant in his campaign as a spy, referring to the matter as "spygate". "He obviously knows that's not something he would or should do", the Senate's top Republican said.
DOJ officials have balked at some of the document requests from Congress out of concern that they shouldn't be sharing information about the Russian Federation investigation before it is done. "What do you say to them?" Lame Duck Speaker: "Get the hell out of the office, you're going to send us to perdition and destruction in the midterm elections".
"At least we know that the third most powerful constitutional law officer of the United States of America does not believe that", he added.