You make a claim in any thread on any topic, it's up to you to provide the evidence, that's how it works, that's how simple it is. Just saying, "No, you're wrong", doesn't cut the mustard.
Unless I go hunting through old threads and/or YouTube vids, Harris's policy ideas were pretty much dissing what she achieved as Vice President.
What would she have been like with Iran? Well, pretty much the same as everything else, disastrous. Lefties bizarrely believe that they can negotiate with Muslim governments, but jobs, terrorists. Try turning your shirt around and have the buttons up the front.