First Read: “The next seven days until Michigan’s primary may very well be the most important of Mitt Romney’s political life. They could determine if he becomes the GOP nominee; if he does not; and if we might enter — as we’ve described it before — the political equivalent of Thunderdome, with either a ‘brokered’ or ‘contested’ convention in August. All of these things are on the line for Romney next Tuesday. And in between, he will have two big opportunities to right his campaign’s ship: 1) Wednesday night’s debate in Arizona and 2) Friday’s economic speech in Detroit.”

David Challian: “Nothing matters more for Romney than coming out on top after the votes are counted next Tuesday, but getting there will likely require a winning debate performance on Wednesday night in Arizona and a rousing economic speech in Detroit on Friday… This is the kind of week for which Romney has been spending the better part of the last six years preparing. To regain the upper hand in this nomination battle, Romney will need to turn that preparation into flawless execution.”

A new We Ask America poll in Arizona shows Mitt Romney leading the GOP presidential primary with 37%, followed by Rick Santorum at 27%, Newt Gingrich at 15% and Ron Paul at 8%.

A new CNN/Time poll shows Romney leading Santorum by just four points, 36% to 32%, with Newt Gingrich at 18% and
Ron Paul at 6%.

The Arizona primary is on February 28.

Sen. Richard Lugar (R-IN) defended himself after opponents claimed that he isn’t qualified to run for office because he doesn’t actually live in Indiana, WRTV-TV reports.

“Lugar said he and his wife sold their house in Indianapolis because the only way they could afford to keep the family together and be part of their sons’ school and after-school activities was to move to Washington, D.C. full time and buy a home there.”

Most interesting: “Lugar said he isn’t sure what address is on his Indiana driver’s license but presumes it was from the house he no longer owns.”

The Indiana Election Commission is set to meet this week to consider Lugar’s situation.

As Rep. Connie Mack (R-FL) gears up for a U.S. Senate bid, the Miami Herald runs a brutal piece on his problems with personal finances, his ex-wife and bar fights.

One notable incident included baseball player Ron Gant: “Gant claims a drunken Mack repeatedly bumped into him, precipitating a fight. Mack claims Gant attacked him for no reason. During the melee, Gant head-locked Mack. Mack testified that he couldn’t breath. So he starting striking and grabbing the ball player’s crotch. At a certain point, the club’s bouncers got involved and Mack broke his ankle. He sued Gant, who was held liable. But a jury awarded no damages.”

A new Mitchell/Rosetta Stone Poll in Michigan shows Mitt Romney leading Rick Santorum, 32% to 30%, with Newt Gingrich at 9% and Ron Paul at 7%. Another 22% of voters remain undecided.

Eight days ago, Santorum had a 9% lead and twelve days before that Romney led by 15% in a very volatile race.

Rick Santorum now holds a 10 point lead in the Gallup daily tracking poll of registered Republicans nationally.

New financial disclosures shows that Super PACs and other groups “dominated the race for the Republican presidential nomination last month, raising and spending tens of millions of dollars outside the traditional campaign system and playing a key role in extending an already tumultuous contest,” the Washington Post reports.

New York Times: “The spending reports revealed the breadth and power of super PACs as the campaign hits a critical and perhaps decisive period, with outside groups poised to pick up a growing share of political spending during the costly primary battle that lies ahead.”

David Weigel reads into the food-related expenses of the four Republican presidential campaigns.

“What
do we learn? Sometimes there are data dumps that confound our
expectations about candidates, and sometimes, we get material that
confirms them. Here we learn that the Paul campaign, holding no debt,
tracks the most minute expenditures at average joe fast food places,
that the Romney campaign eats well or eats in airports, and that the
other two guys are too strapped and too busy to care about this stuff.”

The Hotline:
“Obama made his first visit to Wisconsin in over a year this week, and
we were reminded of why he’s been absent for so long. Last year’s
dispute over collective bargaining triggered a series of state Senate
recalls in the Badger State — but in districts Republicans won in 2008,
even as Obama carried the state by double digits. So his presence would
not have been helpful. But next up is a different type of recall, a
statewide affair in which turnout will matter, regardless of where in
the state it comes from. Obama will have a decision to make about how
closely he wants to tether himself to the Democratic nominee in the
near-certain recall. And how close he stays will say a lot about what
the White House thinks the chances of defeating Gov. Scott Walker look
like.”

“Walker is looking to extend the delay in the Wisconsin’s
recall process as long as possible. Due to a quirk in the state’s
campaign finance law, Walker can raise unlimited funds until the date of
the election is set, allowing him to further bolster his already
massive campaign warchest.”

A new USA Today/Gallup poll finds that by a 66% to 29% margin, Republicans say it would be better if one of the four candidates now running managed to secure enough delegates to clinch the nomination rather than head to a brokered or deadlocked convention.

In addition, 57% say the volatile nomination battle isn’t hurting the party.

Pinterest highlights photos of the luxury hotels that appear under “TRAVEL: LODGING” in Mitt Romney’s January 2012 campaign finance report.

Howard Kurtz: “Rick Santorum’s main complaint about the press used to be that he wasn’t getting enough of it. But now that he’s surged to the top of the national polls, the former senator’s campaign is growing increasingly perturbed by a wave of coverage of his views on birth control, abortion, and religion.”

“Defeating Barack Obama becomes, in fact, a duty of national security. Because the fact is, he is incapable of defending the United States.”

— Newt Gingrich, quoted by NBC News, adding the country is at risk “someday in your lifetime of losing an American city” from a terrorist attack.

Washington Post: “President Obama and his wife, Michelle, despite having the second-lowest income of the four candidate/spouse combos, gave the highest percentage of their $1.8 million income to charity in 2010. He and Michelle gave 14.2% of their AGI, while the Romneys gave 13.8%.”

“Santorum and Newt Gingrich, by comparison, gave very little of their income to charity. Gingrich and his wife, Callista, gave 2.6% of their $3.2 million income in 2010. Santorum and wife Karen, who made the least in 2010 (less than $1 million), also gave the lowest percentage of their income to charity, at 1.8%.”

Paul Caron has charts detailing their charitable contributions,

A new Tulsa World poll in Oklahoma finds Rick Santorum leading the GOP presidential race with 39%, followed by Mitt Romney at 23%, Newt Gingrich at 18% and Ron Paul at 13%.

The Oklahoma primary is on March 6.