It’s a political earthquake that is reverberating across multiple layers of government: Longtime U.S. Rep. Luis Gutierrez says he will not seek another term. 

Cook County Board President Toni Preckwinkle can expect easy passage of a revised spending plan, though Commissioner Jesus “Chuy” Garcia said he hasn’t made up his mind about how he’ll vote.

Democratic sources tell Chicago Tonight that Cook County Commissioner Jesus “Chuy” Garcia is mulling a run for the post, contingent on whether he can garner enough Democratic support.

It wasn't all about politics in 2015, but stories of government change, corruption and challenges loomed large in the headlines. With that, we present a collection of the stories that "Chicago Tonight" followers were most interested in over the past 12 months.

Chicago Mayor Rahm Emanuel has secured a hard-fought re-election after a historic and surprising runoff challenge from Cook County Commissioner Jesús "Chuy" García.

It's a sprint to the finish line for Rahm Emanuel and Jesús "Chuy" García. We take a look at how the candidates are preparing for Election Day.

The two mayoral candidates vote early, along with a record number of Chicago voters. Do the early voting numbers bode well for one candidate over another? We have the latest details.

Could spiking crime numbers hurt Mayor Rahm Emanuel's re-election chances one week from the April 7 runoff? According to challenger Jesús "Chuy" García, the uptick in homicides mean that "Rahm has not prioritized public safety." On Wednesday, García said "the numbers look really grim" and that if he is elected mayor, Chicago Police Supt. Garry McCarthy would have to go. We have the details.

We share what you had to say about our mayoral runoff forum in tonight's viewer feedback.

Mayor Rahm Emanuel and challenger Jesús "Chuy" García went head-to-head in a live forum hosted by Phil Ponce and live streamed at wttw.com.

With Mayor Rahm Emanuel and challenger Jesús "Chuy" García offering competing views on how to fix the city's finances, our panel looks at the proposals put forward to fix the city's looming crises.

Mayor Rahm Emanuel and challenger Jesús "Chuy" García went one-on-one in the first runoff debate Monday. The two hit hard on each other's positions on city finances, crime, and red light cameras.

With less than a month until the April 7 runoff election in Chicago, the mayoral contenders ratchet up the attack rhetoric. Both candidates have harsh words for the other over who can right the city's financial ship. We have the details.

Mayoral candidate Jesús “Chuy” García is hoping that an influx of support from black leaders will put him ahead of opponent Mayor Rahm Emanuel in the April 7 runoff election for Chicago mayor. 

A new poll concludes that Mayor Rahm Emanuel is "very likely" even with challenger Jesús "Chuy" García. The poll, conducted by Ogden & Fry, shows Emanuel up 43 percent to 38.5 percent, with 18.6 percent undecided.

Mayor Rahm Emanuel will face Jesús "Chuy" García in an April 7 runoff election after securing only 45 percent of the vote on Election Day to García's 34 percent. The mayor joins us.