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Tonight Nate Silver’s polling models are giving President Obama a 91.4% chance of winning, with 314 electoral votes compared to Mitt Romney’s 223.

The latest update from Nate Silver’s poll aggregation system is now giving Barack Obama an 80 percent chance of winning the electoral college vote.

Nate Silver has crunched the numbers from the latest polls in great detail, as is his wont, and it looks like President Obama’s electoral college advantage is actually increasing.

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The state of Ohio is perhaps the most critical swing state this election, and the latest polls are strong evidence that President Obama’s got it locked up. Via Nate Silver on Twitter:

7 polls released in Ohio in past 48 hours: Obama +2, Obama +3, Obama +3, Obama +3, Obama +5, Obama +5, Obama +5. #notthatcomplicated

— Nate Silver (@fivethirtyeight) October 31, 2012

Nobody is as wonkish about polls as Nate Silver, and today he has an interesting look at what’s turning out be an historic ‘Gender Gap’.

If only women voted, President Obama would be on track for a landslide re-election, equaling or exceeding his margin of victory over John McCain in 2008. Mr. Obama would be an overwhelming favorite in Ohio, Florida, Virginia and most every other place that is conventionally considered a swing state. The only question would be whether he could forge ahead into traditionally red states, like Georgia, Montana and Arizona.

If only men voted, Mr. Obama would be biding his time until a crushing defeat at the hands of Mitt Romney, who might win by a similar margin to the one Ronald Reagan realized over Jimmy Carter in 1980. Only California, Illinois, Hawaii and a few states in the Northeast could be considered safely Democratic. Every other state would lean red, or would at least be a toss-up.

Although polls disagree on the exact magnitude of the gender gap (and a couple of recent ones seemed to show Mitt Romney eliminating the president’s advantage with women voters), the consensus of surveys points to a large one this year — rivaling the biggest from past elections.

According to poll guru Nate Silver, President Obama is emerging as the clear favorite in this election.

On Friday, we began to see reasonably clear signs that President Obama would receive some kind of bounce in the polls from the Democratic convention.

Mr. Obama had another strong day in the polls on Saturday, making further gains in each of four national tracking polls. The question now is not whether Mr. Obama will get a bounce in the polls, but how substantial it will be.

Some of the data, in fact, suggests that the conventions may have changed the composition of the race, making Mr. Obama a reasonably clear favorite as we enter the stretch run of the campaign.

On Saturday, Mr. Obama extended his advantage to three points from two points in the Gallup national tracking poll, and to four points from two in an online survey conducted by Ipsos. He pulled ahead of Mitt Romney by two points in the Rasmussen Reports tracking poll, reversing a one-point deficit in the edition of the poll published on Friday.

A fourth tracking poll, conducted online by the RAND Corporation’s American Life Panel, had Mr. Obama three percentage points ahead of Mr. Romney in the survey it published early Saturday morning; the candidates had been virtually tied in the poll on Friday.

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.