Your post proved you and I’m sure many others that hate Trump, that your opinion is already baked in. It’s really simple.
Yes, I have proof. Lol this applies to the house intel as well. Simple google would have answered that question for you.
Staff: The Committee’s staff reviews intelligence reports, budgets, and activities; investigates matters on behalf of the Committee; prepares legislation; and receives briefings.
Access: While all Senators have access to classified intelligence assessments, access to intelligence sources and methods, programs, and budgets is generally limited to Intelligence Committee members (and to members of the Defense Appropriations Subcommittee).
By law, the President is required to ensure that the Committee is kept “fully and currently informed” of intelligence activities—meaning that intelligence agencies are required, generally in writing, to notify the Committee of its activities and analysis. This includes keeping the Committee informed of covert actions and any significant intelligence failure.
https://www.intelligence.senate.gov/about