SEC chair Gary Gensler reaffirms that Bitcoin is not a security and investors can now buy it through exchange-traded products.Gensler refuses to comment on Donald Trump's plan for a national Bitcoin reserve to avoid influencing voters in an election year.While Gensler has approved Bitcoin and Ethereum ETFs, other tokens are still classified as securities by the SEC.Gensler emphasizes the importance of regulations in the crypto field to protect investors and build trust.