Ms. Lewis "has  thrown down a national gauntlet, of sorts, and said 
mayors and other  reformers won't define teaching—teachers will define 
it," said Barbara  Radner, director of the Center for Urban Education at
 DePaul University.  "This is about the soul of teaching and who is 
going to define it going  forward." -- WSJ 
This is a good report from the WSJ and does a better job than the NY Times. The national press is getting the message that this is no typical teacher strike and is as much over ideology and the soul of teaching as anything else. They are also getting the message that the public supports them. You don't see any of the astroturf groups out there protesting the teachers. That is due to the amazing work in the community the union has done.
One thing the press isn't reporting is Karen Lewis' salary. When she took over the new union leadership cut salaries severely and at one point Karen was making less than the old guard field reps. They managed to close an almost $4 million deficit left by the old Unity style corrupt UPC. Basically, Karen earns a teacher salary plus the equivalent of per session pay to cover all the extra time she puts in. It's less I bet than a 100 people in the UFT.
Many  of us here in NYC are very familiar with the people running CORE.
See NY Times on Karen: 
Teachers’ Leader in Chicago Strike Shows Her Edge
 
The  press loves to emphasize the leader and ignore that there is a real  force behind Lewis and in fact she is the person out front. That is not  an easy place to be but she was chosen because she can handle it. There  are so many other strong voices in CORE. And she is responsible to them. CORE is so different from Unity and has given those of us working in MORE a model to work from. If you watch the Al Ramirez (one of the 2 originals in the group that became CORE) you will see the leadership and organizing abilities they bring to the table. 
MORE Chicago Solidarity Event - Aug 23 2012 
I have a great Ed Notes exclusive video of Karen appearing as a speaker at the AFT Peace and Justice caucus in Detroit which I will put up. You get Karen unfiltered through the press. (I also taped Karen in Seattle in 2010 just a few days after CORE took over the union - if I can find that I can put up an edited piece).
In Chicago, Standoff Built Over Two Years 
CHICAGO—A  teachers strike that shut down the nation's third-largest school  district for a second day Tuesday had its roots in the election two  years ago of union head Karen Lewis, who harnessed growing teacher anger  over school reform efforts here that were targeting teachers'  performance and closing poor-performing schools.
With  rank-and-file support to launch Chicago's first teacher strike in 25  years, Ms. Lewis, a high school chemistry teacher, has positioned  herself as a champion of resistance to the national education-reform  movement, making Chicago a central battleground over control of U.S.  public schools.
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Zuma Press 
Chicago  Teachers Union president Karen Lewis, in Chicago on Tuesday, harnessed  growing teacher anger over school reform efforts in the city.
Thousands  of teachers picketed Tuesday, staging boisterous rallies at the Chicago  Public School headquarters and calling for Mayor Rahm Emanuel's ouster.  City leaders said the two sides were close to agreement. But union  officials said dozens of issues in the contract negotiations remained  unresolved.
Parents struggled to juggle children and  work. Many fretted over the disruption. Krystyna Sobek, a maintenance  worker in downtown Chicago, said she had to ask her parents to watch her  11-year-old daughter.
"I feel that she should be in  class," she said. "I'm thankful because I do have my mom, and without  her, where would I take her? Pay for day care? That would be hard for  me." 
Related Video
Chicago  teachers take to the picket lines for the first time in 25 years in  dispute over Mayor Rahm Emanuel's longer school day, job security and  class size. WSJ's Caroline Porter and Douglas Belkin report. Photo: AP.
Other  parents joined picket lines. Erica Clark, a member of Parents 4  Teachers, brought her 16-year-old son. "The main point is that parents,  teachers and communities are rallying together, doing what they need to  do," she said.
City officials said 18,000 of the  school system's more than 350,000 students had attended more than 140  schools staffed to provide basic activities and serve meals on Monday.  The city announced it would extend the program to six hours a day to  make it easier for working families.
Randi  Weingarten, president of the American Federation of Teachers, the 1.5  million-member national group that includes the Chicago union, joined  the heads of other public-sector unions, including those representing  nurses and police, in an appearance Tuesday to show support. The leader  of a union that represents some school custodians said his members might  start striking Friday in solidarity.
"To say that  this contract will be settled today is lunacy," Ms. Lewis said,  dismissing opponents as "rich people who think they know best."
Mr.  Emanuel said Tuesday the strike was unnecessary. "It's not about  getting rid of people, it's about raising the standards, raising the  qualities in the schools," he told a news conference.
Ms.  Lewis, the daughter of teachers, had been little involved in the union  over two decades of teaching. In 2008, she joined the fledgling Caucus  of Rank and File Educators. 
Teachers on Strike
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Jean Lachat/Reuters 
Teachers walked the picket line outside Anthony Overton School in Chicago Monday.
The  group felt union leaders were doing too little to fight the overhauls  favored by then-Mayor Richard M. Daley and Chicago schools chief Arne  Duncan, who is now President Obama's Secretary of Education, including  the expansion of charter schools and closing low-performing public  schools. 
Ms. Lewis took the top union job in June  2010 with a mandate to take a more adversarial role. She has since  reveled in the spotlight, with a cheeky and sometimes aggressive style. 
Reform  efforts by Mr. Emanuel and others to tie teacher salaries and tenure to  student test scores were unfair, she said, and didn't address larger  problems created by poverty, poor curriculum and a shortage of  counselors and social workers.
Ms. Weingarten, while  showing solidarity with Ms. Lewis on Tuesday, has embodied a more  collaborative approach to national school reform. She has supported  teacher contracts—including one in Cleveland—that effectively weakened  tenure rules and linked teacher evaluations to test scores.
The  Chicago teachers' previous contract, negotiated by Ms. Lewis's  predecessor, gave teachers a total wage increase of 19% to 46% over the  contract period from 2007 to 2012, according to a fact finders report  issued in July. Chicago's average teacher salary is now $71,000 a year,  according to the city.
But some teachers were angry  because they felt the union didn't do enough to prevent the closure of  dozens of poorly performing schools and increase the number of charter  schools, which generally hire nonunion teachers.
Advocates  say schools that are too dysfunctional should be closed so students can  go elsewhere. They say charters offer an important alternative to  low-performing public schools and can experiment with new teaching  approaches without the constraints of union contracts.
Campaigning  in early 2011, Mr. Emanuel pledged he would institute a longer school  day at Chicago schools, which he said was among the shortest in the U.S.  Once elected, he appointed a district chief with a track record of  challenging unions, and appointed a school board whose first vote was to  rescind a 4% raise slated for last year.
Ms. Lewis derided Mr. Emanuel's longer school day as "baby sitting and warehousing." 
Earlier  this year, Ms. Lewis orchestrated rallies and sit-ins across the city,  including one at Mr. Emanuel's home, to protest the mayor's policies. In  June, when their contract expired, teachers voted to authorize union  leaders to call a strike.
To address teacher anger over the longer school day, Mr. Emanuel in July agreed to rehire more than 400 laid-off teachers. 
The  city is now offering teachers a new four-year contract that includes  salary increases of 3% in the first year, and 2% annually for the  remaining years. In addition, teachers are eligible for raises based on  years of service. 
Union leaders have said salaries  aren't a sticking point. They said they were fighting over proposals to  change teacher evaluations, and the union's call for job security for  dismissed teachers—as well as other issues including more school  counselors and more air-conditioning.
Ms. Lewis "has  thrown down a national gauntlet, of sorts, and said mayors and other  reformers won't define teaching—teachers will define it," said Barbara  Radner, director of the Center for Urban Education at DePaul University.  "This is about the soul of teaching and who is going to define it going  forward."
—Caroline Porter contributed to this article.
Write to Stephanie Banchero at 
stephanie.banchero@wsj.com