“Nobody wants to see that,” the Texas Democrat told BuzzFeed News. “Bigger than the current president, this is for all presidents. If we can’t stop one, we’ll stop the rest.”

Green said on Wednesday evening that he doesn’t think such an amendment is needed — he thinks the Constitution doesn’t allow such a self-pardon. But he’s laying the groundwork to try to pass an amendment like this, should it become necessary.

“Our president has given signals that he is reviewing the Constitution and, in the process of reviewing it, it has been published that the review includes that possibility of his considering pardoning himself,” Green — who already has filed articles of impeachment against President Trump — said.