no Article 1, Section 6 of the Constitution
No member of the Senate or the House or Representatives may be sued for any statements made during session. The reason for this is to prevent intimdation from any opposition or a possibly hostile Judiciary.
Yes, congress.
Congress can be sued. In fact, Congress has been named as a defendant in many cases. In 2009, someone sued Congress because they felt Obama was not born in the US.
If I told you that I'd probably get sued by that person, and that person has better lawyers than I do.
What statements were made?
Yes, Harper's magazine can be sued for libel if it publishes false statements that harm a person's reputation. To win a libel case, the individual would need to prove that the statements were false, defamatory, and made with actual malice (reckless disregard for the truth).
other person get sued
Yes, they can be sued. Its law.
No. They can only go after the assets of the person that is being sued. If you have a joint account with that person that is part of the other person's assets. Any account that is just in your name is safe as you are not the person being sued.
Yes.
Yes, just like any person or professional he can be sued.
They are the defendant. The person suing them is the plaintiff.