He accused “extraordinarily wealthy institutions” of bringing pressure on him to rescind the criticism, and said they were telling him, “You’d better shut up.’’…

“I’m not going to back down or be afraid to say we the American people have the right to know, and any candidate for president has an obligation to tell us,’’ he said.

“No one tells the American people they aren’t allowed to learn what is going on in their very own country,’’ he said.