Ripple CEO Brad Garlinghouse clashed with Senator Cynthia Lummis when the senator's staff cancelled a meeting with him.Garlinghouse challenged Lummis to debate on crypto legislation, highlighting the divide on crypto policy outlooks.Lummis, a strong Bitcoin advocate, focuses on the stable-coin bill as the Senate's Digital Assets Subcommittee Chair.Bitcoin supporters cheered the cancellation, while XRP advocates criticized Lummis' alleged Bitcoin favoritism.