Not that he needed much help, but Governor Jan Brewer of Arizona has endorsed Mitt Romney ahead of the primary in that state on Tuesday.

MSNBC:

Brewer said she viewed Romney as the most electable candidate to challenge President Obama this fall, and that she made her conclusion after meeting with the candidates and after a debate this week in Arizona.

"I have decided that I am going to publicly endorse Mitt Romney. I think he's the man that can carry the day," Brewer said. "I think Mitt is by far the person who can go in and win."

Brewer has become a national figurehead for efforts to curb illegal immigration after leading an effort to install one of the nation's toughest immigration laws.

She also drew headlines for a confrontation recently with President Obama on an airport tarmac. She was photographed wagging a finger at the president after greeting him and handing him a handwritten note. Brewer described the exchange as being driven by Obama's dissatisfaction with her book, though the president described the exchange as being "not a big deal."

Romney is seen as the leader in Arizona, the winner of which is awarded all of the state's delegates to the Republican National Convention this summer.

Forty-three percent of likely Republican primary voters said they intend to vote for Romney in a NBC News/Marist poll released midweek; he was followed by former Pennsylvania Sen. Rick Santorum at 27 percent, former House Speaker Newt Gingrich at 16 percent and Texas Rep. Ron Paul at 11 percent.

AT's Rich Baehr calls Arizona Romney's "insurance state." With the endorsement of Brewer, it looks like Romney's policy is as good as gold.