Saturday, June 28, 2008

DCW Presidential Forecast - June 28

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This is the DemConWatch Presidential Forecast, a summary of the best election projections on the web. Please also check out our Senate Forecast, and the House Forecast will be introduced later this month.

Update 6/28: Latest projection: Obama leads 301-237, up 2 from the last forecast of 299-239. 538.com made another major change to its algorithm, assuming that the race will naturally tighten. This had the effect of bringing Obama's state numbers down across the board and changed their estimate of Obama's EVs from 344 to 310, and 538.com is no longer an outlier on the Obama side. But this was balanced out and more by movement towards Obama in a number of states in different projections, especially in GA, MI, MN, TX and WI, giving Obama an overall +2 EVs on average. A history chart is at the bottom of this post.

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. Changes: MI moves to Obama, NC moves to McCain.

<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>
Unanimous solid states, not shown in the table below:
Solid Obama: CA, DC, HI, IL, MD, NY, RI, VT - 131 EVs.
Solid McCain: AL, ID, KY, OK, TN, UT, WY - 47 EVs

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

DCW General Election Tracker
State
EVsElect. Proj.Open LeftEV.
com
538.comRCPRMCNNNBCFHQ....
Date

6/276/286/286/286/286/286/276/56/25
Obama (O)

207194172203146200153153153
Obama-Lean (OL)

779957909284784754
Tossup (T)

95771532913714113138129
McCain-Lean (ML)

898385867066698471
McCain (M)

70857112793174125116131
Obama Total

284293229293238284231200207
McCain Total

159168156213163240194200202
Obama Est.

334328311310302287286276275

Texas
34MLMLMLMMLMMMM
Florida
27TTTMLTMLTTML
Pennsylvania
21OLOLTOLOLOLOLTT
Ohio
20OLOLTOLTOLTTT
Michigan
17OLOLOLOLTOLTTT
Georgia
15TMLTMLMLMMLMLML
New Jersey
15OOOLOOLOOLOLOL
N. Carolina
15TTTMLTMLMLMLML
Virginia
13TTTTTMLTTT
Massachusetts
12OOOOOOOOOL
Indiana
11MLMLMLTTMMLMLT
Missouri
11TTTMLTMLTMLT
Washington
11OOOOOLOOLOLO
Arizona
10MLMMMMMMMM
Minnesota
10OOOLOOLOOLOLOL
Wisconsin
10OOLOOOLOLOLTT
Colorado
9TOLTOLTTTTT
Louisiana
9MLMMLMLMLMMLMLM
S. Carolina
8MLMLMLMMMMMML
Conn.
7OOTOOLOOOO
Iowa
7OLOLOLOLOLOLTTOL
Oregon
7OLOLTOLOLOOLOLOL
Arkansas
6MLMMLMMMMLMLM
Kansas
6MMLMMMMMMM
Mississippi
6MLMLMLMMLMMMLM
Nebraska
5MMMMMMMMLM
Nevada
5TTTTTTTTT
New Mexico
5OLOLOLOLTOLMLTT
W. Virginia
5MLMMLMMMMLMM
Maine
4OOOOOLOOLOLO
NH
4OOOOLTOLTTT
Alaska
3MTTMLMLMMMML
Delaware
3OOLOLOOOOOOL
Montana
3MMLMLMMLMMLMLML
N. Dakota
3MTMLMLMMMMLT
S. Dakota
3MMMMLMMMMM


Elect. Proj.Open LeftEV.
com
538.comRCPRMCNNNBCFHQ....












































































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: 2 at Tossup, 4 at McCain-Strong. Rasmussen's own poll shows McCain only up by 4, yet they still have AK as Likely-Republican, which we convert to McCain-Strong.
  • Connecticut: Only Electoral-vote.com having it as a toss-up - that likely won't last. The only poll in the last 3 months showed Obama at +3 in late May.
  • Georgia: 2 at Tossup, Rasmussen still has it as McCain-Strong.
  • Indiana: Rasmussen again the holdout at McCain-Strong.
  • Minnesota: With Survey USA out on June 16 with a poll showing Obama only up by 1, CNN's projection of a Tossup doesn't look like as much of an outlier. CNN moves to Obama-Lean.
  • Montana: 538 now has it as a Tossup. 2 Projections have it as Strong-McCain. Last poll was in April.
  • New Hampshire: Three projections have this former? battleground state at Obama-Strong.
  • New Mexico: Five projections have it as Obama-Lean, CNN has it at McCain-Lean. Two recent polls show Obama up by 3 and 8 points.
  • North Dakota - Two have it as tossup - that won't last. Or will it? There hasn't been a state poll in ND since April.
  • Oregon - One of the few Obama states that seems to be closing, with Obama only up by 3 in the latest SurveyUSA poll. 1 Tossup, 1 Obama-Strong.
  • South Dakota: 538 has it as Tossup.
  • Virgina (New): 538 has it as Obama-Lean, Rasmussen at McCain-Lean
  • West Virginia: 538 has it as Tossup.
  • Wisconsin: Electoral-Vote.com is the first to move this former battleground state to Obama-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.