Independent U.S. presidential candidate Robert F. Kennedy Jr on Friday questioned Republican nominee Donald Trump's recent pro-cryptocurrency stance, as the two vie for votes in November's election from crypto-holders at the Bitcoin 2024 conference. Trump is set to speak on Saturday at the conference in Nashville, Tennessee, which is estimated to have about 20,000 attendees. Kennedy was favored by 8% of voters in a recent Reuters poll, which could be significant if he draws voters from Trump or Kamala Harris, poised to become the Democratic nominee.