Ted Cruz has won the Maine GOP caucuses, his second victory Saturday.
Trump is leading polls in eight of the 11 states.
Former communications director Tim Miller called Christie "pathetic."
The photo appears to be a re-post from October.
Kasich disputed that he's trailing Donald Trump in his home state.
The secretive conservative group is ready to defect from Cruz if he flops on Super Tuesday.
The 2006 donation was made out to "Friends of Hillary Clinton."
Trump has 29 percent in the state, with Rubio at 21 percent and Cruz at 20 percent.
The ad features Gov. Nikki Haley, Sen. Tim Scott and Rep. Trey Gowdy.
“Trump talks about our flag like it’s a social disease," the call says.
Trump said he "wouldn't like" Obama if he were black.
"Scared of Donald Trump?" Bush responded indignantly.
"The scream you hear ... from Washington, D.C., is utter terror."
Trump said he would sue newspapers and "win lots of money."
A new poll finds Trump leading Rubio, 34 percent to 27 percent.
Gov. Bill Haslam pointed to Rubio's conservative track record and youthful message.
Trump leads in Alabama ahead of the March 1 primary, with Rubio in second.
Organizer says the path to the GOP presidential nomination runs through CPAC.
Butch Otter said Kasich's executive experience makes him stand out in the field.
Bush said he did not think the billionaire businessman would ask him.
Trump said he is "the most conservative person in the world" on several issues.
Trump leads the field, with 28 percent support.
Trump leads with 25 percent support in the state, where 59 delegates are up for grabs.
Kasich encouraged his supporters to "keep the faith."