AT WHY THAT MATTERS.

AND LOCAL ETHICS TO HELP DEVELOP A SUSTAINABLE SUPPLY.

AND NOW TO SOME OF TODAY'S TOP STORIES.

THE CHICAGO TEACHERS UNION IS UNDER FIRE FROM WITHIN , AND THE UNION HAS BEEN FORCED TO MAKE CHANGES TO SOME OF THE ELECTIONS FILINGS OR RISK VIOLATING STATE LAW.

THE UNION HAS BEEN FRONT AND CENTER WITH THE PART OF ONE OF ITS OWN, BRANDON JOHNSON, AS A CANDIDATE FOR CHICAGO MAYOR.

THE BIG BUCKS IN ELECTION ACTIONS ARE NOW CAUSING SOME TEACHERS UNION MEMBERS TO SPEAK OUT.

>> A CHICAGO TEACHERS UNION POLITICAL ACTION COMMITTEE HAS DONATED MORE THAN $1 MILLION SO FAR TO THE MAYORAL CAMPAIGN OF BRANDON JOHNSON, AND UNION LEADERSHIP IS ALL IN ON THE CANDIDATE, WHO IS ALSO A PAID CTU OFFICER AND COOK COUNTY COMMISSIONER.

BUT THAT SUPPORT IS HARDLY UNANIMOUS AMONG THE 27,000 RANK-AND-FILE MEMBERS OF THE UNION , WHICH SOME SAY IS MORE IDEOLOGICALLY DIVERSE THAN LEADERSHIP LETS ON.

>> REPUBLICANS, DEMOCRATS, CONSERVATIVES, PROGRESSIVES, LIBERTARIAN, GREEN PARTY, AND SO FORTH.

EVERY ONE OF THOSE PEOPLE HAVE A RIGHT TO BE HEARD .

>> A GROUP OF CTU MEMBERS MET WITH ME THIS WEEK EAGER TO AIR THEIR FRUSTRATION AT HOW MUCH OF THEIR DUES MONEY IS SUPPORTING THE UNIONS POLITICAL AMBITIONS.

IN THE LAST THREE WEEKS, THE CHICAGO TEACHER UNION LOADED TOTAL OF $415,000 TO TWO POLITICAL ACTION COMMITTEES IT CONTROLS.

THOSE COMMITTEES, CHAIRED BY UNION PRESIDENT STACY DAVIS GATES, HAS SPENT LARGELY ON JOHNSON'S CAMPAIGN AND A HANDFUL OF CITY COUNCIL RACES.

MEMBERS SAY THE LOAN WAS MADE BEHIND THEIR BACKS WITHOUT HAVING THE CHANCE TO VOTE ON IT.

>> MEMBERS WEREN'T NOTIFIED.

IF ANY OF US WERE NOTIFIED BY GOING ONTO THE WEBSITE AND SIGNING OUT THAT THIS MONEY WAS DONATED, AND IT WASN'T DONE IN A TRANSPARENT WAY.

>> Reporter: IN A STATEMENT, UNION OFFICIALS SAY THE MONEY WILL BE REPAID TO THE UNION FROM FUTURE PACK REVENUES, WHICH COME FROM VOLUNTARY DUES PAID BY TEACHERS UNION MEMBERS.

IT'S NOT THE FIRST TIME THE UNION LOANED TO A POLITICAL COMMITTEE.

THE CHICAGO TRIBUNE REPORTS A LOAN OF MORE THAN $300,000 TO A POLITICAL ACTION COMMITTEE IN 2015.

TEACHERS UNION MEMBERS SAY THEY ARE STILL WAITING FOR THE BULK OF THAT MONEY TO BE REPAID, AND THEY SAY THEY EXPECT A SIMILAR RESULT THIS TIME.

>> SHOW OF HANDS, WHO BELIEVES THAT THAT MONEY'S GOING TO BE PAID BACK?

NOBODY REALLY BELIEVES THAT THAT MONEY'S COMING BACK.

WHY NOT?

OUR EXPERIENCE, AS UNION MEMBERS, IS THAT WE'VE LOANED ANOTHER CANDIDATE DURING ANOTHER ELECTION MONEY, AND IT NEVER WAS REPAID.

>> Reporter: THE LOAN IS NOT ONLY CONTROVERSIAL, BUT MIGHT ALSO BE ILLEGAL.

STATE BOARD OF ELECTIONS SPOKE IN MATT DIETRICH SAID THE BOARD SENT A LETTER TO THE UNION.

ACCORDING TO STATE LAW, LABOR ORGANIZATIONS CAN'T GET A PACK MORE THAN $27,400, AND BY LAW CANNOT LOAN MONEY.

>> WE HAVE TO BE A LOAN FROM A FINANCIAL INSTITUTION, AND IN THIS CASE, IT IS A LOAN FROM A LABOR ORGANIZATION, WHICH IS TREATED AS A CONTRIBUTION , WHICH MEANS IT'S SUBJECT TO THE CONTRIBUTION LIMITS.

>> Reporter: CTU HAS SPENT BIG ON JOHNSON AND A NUMBER OF CITY, COUNTY, AND STATE RACES IN THE LAST YEAR, AND HAS SPENT THOUSANDS DIRECTLY ON NAYLOR'S SUPPORTING JOHNSON.

SOME MEMBERS WORRY THE UNION IS RUNNING OUT OF MONEY.

SOME ARE THE ONLY OPTION LEFT IS TO RAISE DUES, WHICH ALREADY AVERAGE AROUND $1200 PER YEAR PER MEMBER.

>> THOSE RESOURCES COULD BE USED FOR A STRIKE FUND, AND THEY'RE NOT.

YOU KNOW, THAT IS, BY MEMBERS BECOMING DISENCHANTED WITH THE UNION, BY MEMBERS WANTING TO PULL THEIR DUES , THIS IS GOING TO, GOING TO DISSIPATE OUR -- >> Reporter: ATTORNEY FOR THE CHICAGO -- TOLD ME ILLINOIS -- THEY WOULD -- THAT FILING TO MAKE -- NOT AS A LOAN, A DONATION OF -- UNION DUES -- ACCORDING TO THE ELECTION.

THAT CHANGE -- MAKE THEM -- WITH THE LAW, BUT -- RAISES QUESTIONS OR NOT THE UNION COULD'VE MADE THAT DONATION WITHOUT THE APPROVAL OF ITS MEMBERS.

MANY OF THE UNION MEMBERS I SPOKE WITH BELONG TO FACTIONS WITHIN THE UNION THAT