[SunkenCiv]

Looking at the older topics, turns out, surprise surprise, he's a Democrat.

The relevant keywords (christinequinn; danhalloran; denisebatista; malcolmsmith; meaghanmapes), sorted:

• Alleged Anti-Semitic Arsonist Released With No Bail In New York [01/08/2020]
• Why Did 101 Lawmakers Send Letters of Support to Israel-Bashing CAIR? [11/05/2018]
• Democrat Activist Charged with Vandalizing New York Synagogue [11/05/2018]
• Synagogue vandalism suspect in NYC worked for Obama campaign in 2008, reports say [11/04/2018]
• Suspect in Vandalism Attack on New York Synagogue Is Democrat Activist [11/04/2018]
• [March 2018] Jewish GOP group calls for resignation of 7 Democrats over 'ties' to Farrakhan [10/28/2018]
• Can a lesbian feminist ever win the presidency in the future? [09/13/2018]
• Eric Schneiderman's Inevitable Fall (open secret to Dems) [05/08/2018]
• Christine Quinn bashes 'unqualified lesbian' Cynthia Nixon [03/20/2018]
• Second time could be the charm for Christine Quinn [11/23/2016]
• Ana Navarro, Christine Quinn meltdown -- CNN implosion over Trump continues (VIDEO) [11/23/2016]
• Ah, ba-ba-ba-ba! Hillary Surrogate Childishly Cuts Off Conservative Critic of Sanctuary Cities [11/17/2016]
• Watch: Clinton Surrogate Stumped by Trump Surrogate, Then Becomes Triggered and Spastic [08/11/2016]
• De Blasio's National "Contract With America" Strategy Leaks [05/09/2015]
• Former City Council Speaker Christine Quinn is joining Cuomo's administration as special adviser [02/14/2015]
• New York City Council Will Weigh Ban On Horse-Drawn Carriages ( Follow the money ) [12/08/2014]
• The slaughter of sacred cows continues: Comrade de Blasio backing "animal rights" group up next [04/30/2014]
• Whoa there: NYC carriage horse ban is stalled [04/22/2014]
• Socialist NYC Mayor Bill De Blasio is Really Good at Tax Avoidance [04/17/2014]
• Bill de Blasio's Other Party: How the Working Families party took over New York City [01/15/2014]
• Could This Be the Real Reason the New NYC Mayor Vowed to Ban Horse Carriages in NYC? [01/07/2014]
• De Blasio's Horse-Drawn Carriage Ban: Is It Really About Campaign Cash? [01/06/2014]
• City Council seeks ban on e-cigarettes in public places as high-tech successor to smoking ban [11/30/2013]
• De Blasio, Other City Leaders Promise Immigration Reform [10/24/2013]
• Bloomberg Rips Mayoral Frontrunner De Blasio's Campaign as 'Racist' [09/07/2013]
• NYC Mayoral Candidate Christine Quinn Wants Morning After Pill for 11-Year-Olds [08/30/2013]
• Maureen Dowd attributes misquote to 'noisy' coffee shop [08/25/2013]
• For New York Mayor, Two Endorsements: Quinn and Lhota [08/24/2013]
• NYC mayoral candidate vows bigger condoms [08/21/2013]
• NYC mayoral candidate Christine Quinn mulls abortion pill for 11-year-olds [08/21/2013]
• Quinn's Wife Edges Onto the Political Stage [08/19/2013]
• New Poll Suggests That de Blasio Is Now First Among Voters (NYC Mayor) [08/13/2013]
• Sunday Morning Talk Show Thread 28 July 2013 [07/28/2013]
• Is Weiner part of a 'war on women'? EMILY's List says no! [07/26/2013]
• New York Lawmakers Outraged at Trayvon Martin Verdict [07/13/2013]
• New York Democrats Want to Ban Police From Describing Suspects By Race, Sex, or Age [06/19/2013]
• Belfast's Lord Mayor Máirtin Ó Muilleoir (Sinn Féin) Endorses Christine Quinn (for NYC mayor) [06/15/2013]
• NYC City Council Rebukes Secularist Fundamentalism [05/28/2013]
• Tobacco For Eighteen-Year-Olds? What Are Bloomberg's Priorities? [04/23/2013]
• State Sen. Malcolm Smith, city Councilman Halloran arrested in 'bribery plot' to rig mayor race [04/02/2013]
• Offstage, a Proudly Brash Quinn Isn't Afraid to Let Her Fury Fly [03/26/2013]
• Powerful NYC pol says she blasted Chick-fil-A as a citizen - but she used official letterhead [08/01/2012]
• NYC Council Speaker Christine Quinn asks NYU to evict Chick-fil-A [08/01/2012]
• Subpoena takes Meeks by storm [04/16/2010]
• Prokhorov NBA Bid Gets Scrutiny; ACORN-Funder Ratner Needs Russian Billionaire to Build Brooklyn... [04/11/2010]
• Smith a porky pig (Brings home bacon as #1 earmarker NY State) [03/23/2010]
• Ousted Majority Leader Malcolm Smith fiddled with BlackBerry while Senate burned [06/10/2009]
• Billionaire businessman helped GOP take back Senate [06/09/2009]
• (NY) Marriage Bill Poses a Test of Loyalties: Church vs. State [04/27/2009]
• QUINN-WIN $ITUATION-24% OF MYSTERY FUND WENT TO HER DISTRICT (NYC Council's Speaker C. Quinn) [04/06/2008]
• Columbia won't cancel Ahmadinejad speech [09/21/2007]

[Cowgirl of Justice]

I just googled him and it says he is an R:

Overview
Daniel J. Halloran III is a former member of the New York City Council and convicted felon. He was indicted on corruption charges in 2013, did not run for reelection, was convicted in July 2014, and is currently back in the private sector on Long Island. Wikipedia
Born: 1972 (age 53 years), Queens, New York, NY
Party: Republican Party

[MayflowerMadam]

“Looking at the older topics, turns out, surprise surprise, he’s a Democrat.”

You knew that from the title in the OP. If it had been a Republican, it would’ve said so. When no party is mentioned, and it’s a negative story, it’s almost always a Democrat.