If it were your turn in the US presidential election, would you support the candidate who was 60 or 78?
Biden's recommendation of Harris is equivalent to transferring the heat to her. At the same time, I still say that Biden's policies are better than Trump's, he is just soft-handed. So people find that if everything remains unchanged, a person who is 20 years younger than him will of course be supported. But Harris dare not move now. Before the election, she relied on her current status as vice president and Biden's support to do a few good things and she would be stable. Now everything is just beginning.
