We take a look at a new study that says Alzheimer’s is the third leading cause of death with one of the study’s researchers, Bryan James of Rush Alzheimer’s Disease Center. Read the full study, an article about super-agers, and view a graphic on Alzheimer's disease.

As spring in Chicago gets underway, so do the building projects. We talk with Chicago Tribune’s Pulitzer Prize-winning architecture critic Blair Kamin about the most recent building projects in the news and what will be coming down the pipeline. Read an article.

Republican Illinois gubernatorial candidates Bruce Rauner, Dan Rutherford and Bill Brady provide information regarding their charitable contributions. Read an article.

It’s funny the way Chicago anecdotes bloom in books about Broadway.

Veteran politician Rep. Tom Cross faces DuPage County Auditor Bob Grogan in the GOP Primary for Illinois State Treasurer. The winner will face Democrat Mike Frerichs, who is running unopposed. Cross and Grogan join us. Read an article.

The Centers for Disease Control says there may be as many as 48 million cases of foodborne illnesses every year in the United States, costing the economy more than $150 billion and resulting in around 3,000 deaths. We talk with two food safety experts about the impact new technologies are having in keeping our food safe. Read an article.

We share what you had to say about The Civic Federation's proposal to balance the state's budget by taxing retirees when we read some of our viewer feedback.

Republican Illinois Lieutenant Governor candidate Jil Tracy was the last candidate to release her tax return ahead of Tuesday's March 18 Primary. Read an article about the tax returns filed by Republican gubernatorial candidates and their running mates.

Set your clocks forward on Sunday -- but not before you shine a light on some excellent art opportunities.

Joel Weisman and his panel of journalists discuss the week's top headlines.

Joel Weisman and his panel of journalists tackle education topics: the ISAT controversy, and why some teachers refused to administer the state-mandated test; the national spotlight shining on Fenger principal Elizabeth Dozier in Chicagoland; and the role Mayor Rahm Emanuel’s education policy could play in the next mayoral election. Watch the web extra video.

A celebrity dance competition, a mural painting event and health expo; Chicago Tonight knows what’s going on this weekend.

Republican candidates for Illinois Lieutenant Governor -- Maria Rodriguez, Steve Kim, and Jil Tracy -- gave a brief news conference following the forum. Read an article.

For the first time in Illinois, the Lieutenant Governor candidates are running with a candidate for governor. We meet the four Republican candidates and hear their vision for their jobs, and for Illinois. Read an article and a recap of our live online chat.

Welcome to Chicago Tonight’s online coverage of Illinois' 2014 March Primary Elections. We’ve gathered information here about the growing Republican and Democrat fields, and some of the key issues in the races. You can read profiles of the candidates, view timelines of their careers, and catch all of their appearances on Chicago Tonight. Early voting started March 3 and the general primary is on Tuesday, March 18.

Candidate Forums:

Wednesday, March 5: GOP Senate Forum: Doug Truax (Jim Oberweis declined our invitation to participate)

Thursday, March 6: Lt. Governor Forum: Maria Rodriguez, Steve Kim, Jil Tracy, Evelyn Sanguinetti

Monday, March 10: GOP Treasurer Forum: Tom Cross and Bob Grogan

Thursday, March 13: GOP Governor Forum: Bill Brady, Kirk Dillard, Bruce Rauner, Dan Rutherford