Nate Silver’s column for the New York Times is his first in-depth presidential forecast and general political wonk-fest.

The first look at the 2012 FiveThirtyEight presidential forecast has Barack Obama as a very slight favorite to win re-election. But his advantage equates to only a two-point lead in the national popular vote, and the edge could easily swing to Mitt Romney on the basis of further bad economic news.

Mr. Obama remains slightly ahead of Mr. Romney in most national polls, and he has had a somewhat clearer advantage in polling conducted at the state level. Mr. Obama would be about 80 percent likely to win an election held today, according to the model.

However, the outlook for the Nov. 6 election is much less certain, with Mr. Obama having winning odds of just over 60 percent. The forecast currently calls for Mr. Obama to win roughly 290 electoral votes, but outcomes ranging everywhere from about 160 to 390 electoral votes are plausible, given the long lead time until the election and the amount of news that could occur between now and then. Both polls and economic indicators are a pretty rough guide five months before an election.