Wednesday, August 20, 2008

Presidential Forecast - 8/20 - What Goes Up...

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Obama leads 291-247, a big change of 8 EVs from our last forecast. With both state and national polls tightening, this was not unexpected. Our most volatile projection, 538.com, is now the lowest at 272 EVs.

Please also check out our Senate Forecast and House Forecast.

Map showing consensus of sources. This table will show a state Blue or Red if a majority of the sources show it Leaning or Solid for that candidate. Even though we has a huge EV change, only 1 state changed: MI moves back to Tossup.
<p><strong>><a href='http://www.washingtonpost.com/wp-srv/politics/interactives/campaign08/electoral-college/'>Electoral College Prediction Map</a></strong> - Predict the winner of the general election. Use the map to experiment with winning combinations of states. Save your prediction and send it to friends.</p>

Note: Only 2 states have shifted categories on the consensus map since early June and not shifted back:
6/18 FL: McCain -> Tossup
7/9 NM: Tossup -> Obama


Of special note is both and MI and NC, which have shifted 4 times between McCain and Tossup.

Unanimous solid states, not shown in the table below:
Solid Obama: CA, CT, DC, HI, IL, MA (new), MD, RI, VT - 119 EVs. Note: NY is no longer unanimous Obama-Strong (Elec-Vote has it at OL), but has not been placed on the chart at this time. (All numbers, however, are correct).
Solid McCain: AL, AZ (new), ID, KS, KY (new), MS (new), NE, OK, TN, UT, WY - 74 EVs.

The sources are sorted by each projection's estimate of Obama's Electoral Votes (Algorithm at bottom). The states are sorted by the number of electoral votes.

DCW Presidential Forecast
State
EVsFHQElect. Proj.RCPEV.
com
RMOpen LeftNBCCNN538
.com
.…
Date

8/20.8/20.8/20.8/20.7/22.8/20.8/6.7/24.8/20.
Obama-Strong (O)

165183183134210193190153200
Obama-Lean (OL)

5777451166371276843
Tossup (T)

16289147112385313212830
McCain-Lean (ML)

605024456270536468
McCain-Strong (M)

94139139131165151136125197
Obama Total

222260228250273264217221243
McCain Total

154189163176227221189189265
Obama Est.

304299297292292290288284272

Texas
34MLMMMMMMMM
Florida
27TTTTMLMLTTML
Pennsylvania
21TOLOLOLOLOLTOLOL
Ohio
20TTTTTTTTML
Michigan
17TOLTOLOLOLTTT
Georgia
15MLMLMLMLMMMLMLM
New Jersey
15OLOOOLOOOOLO
N. Carolina
15TMLTTMLMLMLMLM
Virginia
13TTTTTTTTML
Indiana
11TMTMLMMLMLMLM
Missouri
11TTTMLMLMLTTM
Washington
11OOOOOOOOLO
Minnesota
10OLOLTTOOLOLTOL
Wisconsin
10OLOLOLOLOOOLOLO
Colorado
9TTTTOLTTTT
Louisiana
9MMMMMMMMLM
S. Carolina
8MLMMMMMMMM
Iowa
7OLOLOLOLOLOLOLTOL
Oregon
7OLOLOLOLOOLOOLO
Arkansas
6MMLMMMMMMLM
Nevada
5TTTTTTTTML
New Mexico
5OLOLTOLOLOLTTOL
W. Virginia
5MMLMMLMMMMLM
Maine
4OOOOOOOOLO
NH
4TTTTOLOLTTT
Alaska
3TMLMLMLMTMLMM
Delaware
3OLOOOLOOOOO
Montana
3TMLMLTMLTMLMLML
N. Dakota
3TMMLTMLMLMLMM
S. Dakota
3MLMLMTMLMLMLMM


FHQElect. Proj.RCPEV.
com
RMOpen LeftNBCCNN538
.com
.…




























































Notes:
538 - FiveThirtyEight - Safe and Likely mapped to Strong (O or M), Lean to Lean (OL or ML), Tossup to Tossup (T)
CNN - Safe mapped to Strong, Leaning to Lean, Tossup to Tossup
Elect. Proj. - Election Projection - Solid and Strong mapped to Strong, Moderate to Lean, Weak to Tossup
EV.com - Electoral-Vote.com - Strong mapped to Strong, Weak to Lean, Barely and Tossup to Tossup
FHQ -
FrontLoading HQ - Solid mapped to Strong, Lean to Lean, Tossup (Dem and Rep) to Tossup
NBC - Base mapped to strong,
Lean to Lean, Tossup to Tossup
OpenLeft - Solid mapped to Strong, Lean to Lean, Tossup to Tossup
RM - Rasmussen - Safe and Likely mapped to Strong, Lean to Lean, Tossup to Tossup
RCP - RealClearPolitics - Solid mapped to Strong, Lean to Lean, Tossup to Tossup

Here are the states that span 3 categories.

  • Alaska: 3 at McCain-Strong, 2 at Tossup.
  • Indiana: 2 at Tossup, 3 at McCain-Strong.
  • Minnesota : 1 at Obama-Strong, 3 at Tossup
  • Missouri (NEW): 5 at Tossup, 538 at McCain-Strong
  • New Mexico: 1 Projection at Obama-Strong, 3 at Tossup. This used to be on the 3 category list, but spanning Obama-Lean to McCain-Lean.
  • North Carolina (NEW): 3 at Tossup, 1 at McCain-Strong
  • North Dakota - 3 at McCain Strong, 2 at Tossup.
  • Pennsylvania: 538 at Obama-Strong, 2 at Tossup. Obama averaging up 7 in 3 late July polls.
  • South Dakota: EV.com at Tossup, 3 at McCain-Strong
We're purposely ignoring Maine and Nebraska CD splits for now to keep things simple. We'll add them in later if we need to.

The overall projection is just a straight average of each projections' estimate of Electoral Votes (EVs) for each candidate. For each projection other than FiveThirtyEight, we give Obama 100% of the EVs in a state that is solid for him, 80% of the EVs for a leaner, 50% of the EVs for a Tossup, 20% of the EVs for state that is McCain-Lean, and 0% of the Solid McCain states. Exact opposite for McCain. For FiveThirtyEight, we use their overall estimate of Obama's EVs, not the state-by-state categories.