Why Iowa?

Why is John McCain campaigning in Iowa? The Democratic Strategist notes that not a single poll taken this year has shown McCain leading in Iowa, and most of the polls taken in September show Obama with double digit leads.

Polls aside, there are four big reasons that virtually everyone outside the McCain campaign has been assuming Obama would carry the state this year: (1) Iowa had one of the country's strongest pro-Democratic trends in 2006, producing a gubernatorial landslide, a Democratic takeover of the state legislature, and pickups of two U.S. House seats (one against the previously invulnerable Jim Leach, who's now endorsed Obama); (2) Barack Obama built a powerful organization in the state prior to the Caucuses, which is still in place; (3) McCain skipped the Caucuses in both of his presidential election, which Iowans consider a deadly insult; and (4) McCain has also stubbornly opposed federal subsidies for ethanol, an issue so important to Iowans that a long line of presidential candidates in both parties (including George W. Bush) have flip-flopped on it precisely because of its importance in Iowa.

Is McCain losing his head?