He’s Ralph Nader, if Ralph Nader had had a drug problem and been married three times and one wife had committed suicide.
If he gets 30% of the vote in an important primary it might encourage Biden to get out of the race, or somebody else to get in, but I don’t see him going all the way to the nomination or the presidency.
If he were 20 years younger and still had his voice, it might be different.
Acting as an unintentional stalking horse once the Deep State does their thing would be a concern.