The presidential election is expected to be decided by seven swing states: Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin.

In Nevada there was recently a real duel between former President Donald Trump and Vice President Kamala Harris in the betting odds for victory in the Silver State.

But Trump emerged as the clear favorite last week after data released by the Nevada Secretary of State's Office showed Republicans got off to a strong start in early voting.

Trump is the favorite to win in Nevada against Harris (+145) at BetOnline, an offshore sports betting provider that is not regulated in the US.

A negative number indicates how much a bettor must bet to win $100, meaning a player would have to bet $175 to win $100 on Trump to win Nevada. A positive number represents how much a bettor would win on a $100 bet, meaning a player would win $145 on a $100 bet on Harris to win the state.

Trump is also the clear favorite to win Nevada at Electionbettingodds.com, which averages live odds from FTX.com, Betfair.com, PredictIt.org, Smarkets.com and Polymarket.com. Trump has a 63.5 percent chance on the site, which is -174, giving Harris a 35.5 percent chance, or +182.

Trump is the betting favorite in all seven swing states – which account for a total of 93 electoral votes – at BetOnline and electionbettingodds.com. However, the odds of Republicans winning the swing states are 2:1 at BetOnline.

Nevada saw the largest swing among the seven swing states at DraftKings Sportsbook, where presidential election odds are only available in Ontario, Canada.

Before the early voting data was released, the book reported that the favorite in Nevada had already switched from Harris (125) to Trump (135). Updated odds were not available.

In the last four presidential elections, Democrats have won in Nevada.

Betting on politics is not permitted at US sportsbooks.

Trump has become a -190 favorite at BetOnline to win the election over Harris, a +165 underdog. The book accepted bets on Trump of $80,000 on Wednesday at -160 and $73,625 on Saturday at -175.

“It’s simply because the money is now for him,” political oddsmaker Paul Krishnamurty of BetOnline.ag told the Review-Journal. “We are also taking money for Harris, and in my opinion the race is very close, everything is open.”

One bettor placed a $49,956 bet on Harris at +155 on Friday, and the same player also placed bets on Harris of $49,984 at +125 and $49,928 at +140, according to posts on X by BetOnline brand manager Dave Mason.

“We’re trading the election to make money,” Mason responded to a commenter who called him a Trump supporter. “…If you think our numbers are wrong due to bias, bet on the other side to make easy money.”

Trump has a 61.2 percent chance of winning the election, or -158, according to Electionbettingodds.com. Harris has a 38.3 percent chance, or +161.

Contact reporter Todd Dewey at [email protected]. Follow @tdewey33 on X.