All posts by Aztocas

Updated Election Odds: Betting Odds Stabilize with Clinton Nearly a 3 to 1 Favorite; Republicans Nearly a Lock to Win the House; Senate Odds Fairly Even

The betting odds seems to have stabilized after last week’s reaction to the Comey letter.  Hillary Clinton’s odds actually improved to 71.8% up from 0.8% last Saturday morning.  It’s interesting that the betting odds of winning seem to be higher for Clinton  than most models predict (fivethiryeight model is at 64.5%).  Donald Trump held fairly steady down 0.1% to 25.3%.  The current lead of 46.4% is down from 61.5% just two weeks ago.  The big mover on the week was Bernie Sanders, who spiked last week on news of the letter and has come down from that 1.2% to 0.5%.

Here are the current odds:

election-odds-11-5-16

Looking at www.predictit.org for the House and Senate, the odds for a split government increased as the odds of the Democrats controlling the government took a dive.

The odds of the Republicans keeping the House improved to to a new high of 94.9%.  Previous high was 90.0% in the middle of September.

The odds of the Democrats straight up capturing the Senate declined from 51.1% to 41.3%. That is more than a 20% decline in just two weeks the lowest since the end of September. The odds of a split Senate increased slightly to 21.1% from 18.1%. This puts the odds of the Republicans maintaining control at 37.7%, a big jump from two weeks ago when it was at a low of 20.5% and the highest since September 24.

The fact that the Republican improved their odds of winning the House and Senate was reflected in the odds of controlling the government which spiked from 11.5% two weeks ago to 22.0%, the highest since October 1.  The odds of the Democrats winning all three got cut in half from 15% to 7.5%, a new low. That is a function of the Republicans having a near lock on winning the House. The most likely scenario continues to be a split government: the odds increased from 67.5% to 70.5%.

Here is a trend of those odds:

election-government-odds-11-5-16

Click here for a state by state forecast of the Presidential elections

Click here for running list of electoral college forecast changes to Presidential elections

Click here for results from last 5 Presidential elections

Follow me @2016ElectOdds for updates

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Updated Poll of Polls: Clinton’s Lead over Trump Shrinks to Smallest Since her Bout with Pneumonia

Hillary Clinton’s lead over Donald Trump continued to decline over the last few days.  It is now at 1.9%, the lowest since September 26 (where it bottomed after Clinton’s bout with pneumonia) . Trump has now gained ground on Clinton the last 15 days

Here is a trend of the polls:

poll-of-polls-11-3

Here are the last 10 polls:

poll-of-polls-last-10-11-3

Of course the election is not about national polls and popular votes.  It’s about the electoral college.  Please see previous posts or click below for updated  state by state forecast of the electoral outcome.

Click here for a state by state forecast of the elections

Click here for running list of forecast changes

Click here for results from last 5 elections

Follow me @2016ElectOdds for updates

Methodology:

  • Use national polls listed at Real Clear Politics
  • Weigh the outcomes by the sample size of each poll
  • Account for the different days spanned for the poll by allocating it out across the days.
  • Example a poll of 1000 voters taken across 7/2-7/5 would have a weighting of 250 voters for each of those days
  • For each day, take the previous weighted 7 days worth of poll data to compute a percentage for each candidate.  The rolling 7 days decreases the impact of large polls taken on a single day (large sample electronic polls)

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Updated Electoral Forecast: Impact of Comey Letter Shrinks Clinton Lead Over Trump to Smallest Since Beginning of October

The Comey letter seems to have had a big impact on the race so far as there has been a big swing in state polls taken since.  The biggest recent changes include:

  • GA Poll Trump +7 which moves state from lean R to likely R (previous polls ranged from Trump +1 to Trump +4)
  • NC Poll Trump +2 moves state from lean D to tossup (Previous polls ranged from Clinton +2 to Clinton +6)
  • 2 PA polls moves state from likely D to lean D (Previous polls ranged from Clinton +5 to Clinton +8)
  • NV Poll Trump +4 (previous polls ranged from tie to Clinton +4)
  • CO Poll Clinton +1 (previous polls ranged from Clinton +3 to Clinton +11)

These gains have closed the forecast gap to the current 311 to 222 with clear momentum behind Trump.  It will be interesting to monitor the next few days to see if the emails remain the top story or if something else comes up to fill the news.  Clinton’s lead is now the lowest since 10/3 (Pre second debate).

The latest polls push have increased the list of tossups:

  • AZ
  • FL
  • IA
  • NC
  • NV
  • OH

Many once thought to be tossup states currently have Clinton in front including:

  • CO
  • NH
  • PA
  • VA
  • WI

Trump will need all of the current tossups plus the majority of the once thought to be tossups that are now forecast as Clinton states to win this race.

Here’s a trend of the forecast:

electoral-forecast-trend-11-1-16

  • Click here for a state by state forecast of the elections
  • Click here for running list of forecast changes
  • Click here for results from last 5 elections
  • Follow me @2016ElectOdds for updates

Views – 799