Chicago teachers go on strike after district talks fail

CHICAGO -- Tens of thousands of teachers and support staff are set to go on strike in Chicago. 

The union president said it was not able to agree on a contract with school officials over pay and other matters.

Meanwhile, Chicago’s school board president, David Vitale, said it was offering a fair deal.

“I would point out, that this financial package over the next four years will cost the system somewhere in the vicinity of $400 million over the four years,” said Vitale “This is not a small commitment we're making at a time when our fiscal responsibility, our fiscal situation is really challenged.”

Chicago is the nation's third-largest school system.