The party at the Mayne Stage includes drink specials and light appetizers.
Eric Glatstein and his election attorney filed the objections on Dec. 3.
Legislative inspector general said 24 aldermen allowed employees to do political work on city time.
Owner Jason Vondrachek denied he had dumped anything illegally at the site.
The Park District board moved toward renaming a $19 million park that was once a Superfund site.
The playground renovations are part of Chicago Plays!, a program administered by Friends of the Parks.
Each year, residents decide where to spend $1 million of Ald. Joe Moore's discretionary budget.
Joe Moore has been the alderman of the 49th Ward since 1991.
Democracy needed a bit of an assist Tuesday when no one showed up to open a polling place.
Joe Moore (49th) allegedly used the term to refer to the Legislative Inspector General's chief of staff.
The school has struggled academically and has been plagued with facility problems, such as lead paint.
The preliminary plans are backed by $100,000 in state funding, officials said.
Ald. Joe Moore said the Chicago Park District wants residents to share ideas for the "underused" park.
Voters picked a design depicting the sun rising over Lake Michigan.
Rogers Park residents will vote for their favorite bike rack design this weekend.
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