If President Joe Biden is not the Democratic nominee coming out of the August party convention, it will have to be Vice President Kamala Harris. So for Democrats who are still wringing their hands over Biden’s debate performance and wanting a candidate other than Biden on the 2024 presidential ticket, please understand this: Not only would backing a candidate other than Harris miss the fact that the party would pass over our well-qualified vice president, it would be politically devastating for the Democratic ticket. The work that Harris has done to advance this administration’s economic and national security agenda has been both symbolic…