Aldermen quizzed Chicago Chief Financial Officer Jennie Huang Bennett (top right) and Deputy Mayor for Economic Development Samir Mayekar (top left) during a committee hearing on Friday.

A key City Council committee hit the pause button Friday on the $1.7 billion Chicago casino plan championed by Mayor Lori Lightfoot’s administration amid a flurry of questions over how much oversight aldermen will have over the deal. Lightfoot’s deputies and committee chair Ald. Tom Tunney (44) are holding on — for now — to a schedule that would keep the plan on track to move to a final City Council vote this week.

But as a range of aldermen beg for more details and language tweaks to a nearly 150-page agreement between casino developer Bally’s and the city, Tunney made it clear that the mayor’s target of a floor vote on Wednesday is no sure bet.