US Election Day Betting Preview: Hillary Clinton vs. Donald Trump Odds

After seeing her odds to become the 45th President of the United States drop dramatically last week when the FBI briefly reopened an email investigation, Democratic candidate Hillary Clinton has since significantly increased her chances of becoming the first woman to hold the top position in the oval office.

Her betting odds were cut in half from a huge -550 favorite (bet $550 to win $100) on October 25 to -275 on November 1 and are now back to -550.

The former Secretary of State, U.S. Senator and wife of President Bill Clinton has been favored throughout campaigns for the primary and general elections, with Republican candidate Donald Trump pulling out all the stops to discredit her down the final stretch.

Despite his efforts, Trump still finds himself as a large +375 underdog (bet $100 to win $375) in the presidential election after sitting at a low of +175 nearly two weeks ago on September 26 following the last debate that many thought he won.

Bettors can also wager on what political party they think will win the general election on Tuesday, with the Democrats listed as -600 chalk to defeat the Republicans (+400). But there are several additional props available that are both intriguing and telling in terms of the big voting picture nationwide.

For example, total states won by the Democratic and Republican parties are each posted at over/under 25.5, with the deciding factor obviously who will win the bigger states and earn more electoral votes.

Another interesting prop available is, what percentage will the voter turnout be for the 2016 general election? The magic number has been set at 58 percent by oddsmakers, with the over favored at -165.

Surprisingly, there has not been a higher percentage of turnout in the U.S. since 1968, when Richard Nixon beat Hubert Humphrey with slightly more than 60 percent of the country voting, according to voting age population (VAP) data tracked by the U.S. Census Bureau.

There was 57.1 percent in 2008 when President Barack Obama topped John McCain and then the number dipped below 55 percent when Obama was re-elected with a win over Mitt Romney in 2012.