Sam Brownback, whose campaign has generally been considered doomed since his poor finish in the Iowa GOP Straw Poll in August, is reportedly dropping out of the race tomorrow, citing money problems.

This is probably good news for fellow-social-conservative Mike Huckabee, and perhaps even for Mitt Romney.

A new Rasmussen poll of Iowa shows Huckabee at 18% of likely Caucus-goers, one point behind Fred Thompson, and seven points behind Romney.

Meanwhile, Rudy Giuliani is doing a quick trip to Iowa, which is spurring all sorts of speculation as to whether he's modifying his earlier decision to write off the Caucuses. The consensus take seems to be that he thinks it would look bad to finish fourth in IA, and could perhaps sneak into second place with a minimal effort.