The reason for that is simple: Trump is concerned about the ongoing special counsel investigation into Russia interference in the 2016 presidential campaign and the possibility of collusion between members of his campaign and the Russians.
Trump has zeroed in on, and at times embellished, reports that a longtime USA government informant approached members of his campaign in a possible bid to glean intelligence on Russian efforts to sway the election.
Giuliani said Mueller's office, which has been negotiating the parameters of a potential sit-down, would probably limit questions to those involving whether the campaign colluded with Russian agents and whether Trump tried to obstruct the investigation into those efforts.
Democrats said Wednesday that the briefing - held as special counsel Robert Mueller investigates Trump's campaign and whether it was involved in Russian meddling in the USA election - was highly inappropriate and asked for the "Gang of Eight" briefing instead of Thursday's GOP-only meeting. Then the Trump White House instructed the Justice Department to brief two Republican committee chairs, including shameless Trump lickspittle Rep. Devin Nunes, on the department's use of that informant.
The substance of Halper's conduct has been nearly a sideshow in recent days, as lawmakers, the White House and the Justice Department have instead debated who would be invited to each briefing, and where they would be held.
Where oh where did they ever get the idea that the Republican nominee for president might be open to something so clearly illegal and unethical? They also said it was inappropriate for White House officials to attend any part of a meeting about a criminal investigation that directly concerns the president and his campaign.
Trump intensified his attacks Thursday, tweeting that it was "Starting to look like one of the biggest political scandals in U.S. history". House Intelligence Committee ranking Democrat Adam Schiff said Flood's involvement was "entirely improper". "I look forward to the prompt completion of the intelligence committee's oversight work in this area now that they are getting the cooperation necessary for them to complete their work while protecting sources and methods".
But, behind his outlandish tweeting and table-pounding, Trump knows his audience well. "Moreover, I assume President Obama knew about it".More news: Solo Launches to $148 Million Worldwide
Also attending the meeting were FBI Director Christopher Wray, Director of National Intelligence Dan Coats and Edward O'Callaghan, a top Justice Department Official.
"Reports are there was indeed at least one Federal Bureau of Investigation representative implanted, for political purposes, into my campaign for president", Trump tweeted on May 18. In other words, they were trying to find out what the Russians were up to and whom they had compromised-if anything, to protect Trump and his campaign from Russia. They're lies. They should have been greeted with headlines reading, "President Trump lies to public about Russian Federation investigation".
Meadows, however, cast doubt on the normality of the informant's alleged role in the Trump campaign.
Special Counsel Robert Mueller departs after a closed-door meeting with members of the Senate Judiciary Committee about Russian meddling in the election and possible connection to the Trump campaign, at the Capitol in Washington, June 21, 2017. A White House lawyer, Emmet Flood, and White House Chief of Staff John Kelly showed up for both briefings, although the White House had earlier said it would keep a distance, drawing criticism from Democrats.
The president demanded the Justice Department investigate the accusations and turn over any relevant documents to Congress.
Asked whether he thought the investigation is legitimate, Giuliani said "not anymore".
The White House had initially said that the Democrats had not formally requested to take part in the briefing, despite calls from Senate Minority Leader Chuck Schumer for the meeting to be bipartisan.