**Cryptocurrency and DeFi News**

- Kalshi presidential election betting volume has surpassed $30 million. The platform launched election contracts in October following a court ruling against the US Commodity Futures Trading Commission.

- Polymarket, an industry leader, has reached $2 billion in bets. Unlike Kalshi, Polymarket prohibits US traders and uses cryptocurrency for betting.

- Donald Trump is leading Kamala Harris by a wide margin on both platforms. Kalshi claims that market manipulation is impossible on its platform due to strict regulations.

- Polymarket has seen a discrepancy between bets on individual states and the overall election outcome, creating arbitrage opportunities.