So Sam Brownback's definitely in. Or so says his spokesman, who gave the following statement to the AP late yesterday: "He will be fully announcing on January 20 in Topeka, Kansas."

Brownback, a Catholic who's revered by the religious right for his adamant opposition to abortion and gay rights, will fly to Washington after his Kansas announcement to join an anti-abortion march noting the anniversary of the Supreme Court ruling. Brownback, who wants voters to see him as the only "real" conservative in the race, is clearly hoping to capitalize on the troubles of Mitt Romney, who's struggled to justify his shifting positions on issues important to social conservatives.