Madigan, Kinzinger hit stage on last night of DNC

What they're saying: "Kamala Harris has always taken principled positions and never wavered," Madigan said to the crowd that cheered loudly when she was announced.

Flashback: Madigan was a rising star who went from Illinois state senator to attorney general, before abruptly deciding to not seek re-election and effectively retire from politics in 2017.

• Madigan was rumored to be a candidate to replace Sen. Barack Obama in 2008.

Zoom in: Kinzinger won his congressional seat as part of the Tea Party political movement in 2010. Since, he's pushed for conservative political policies in Congress.

Yes, but: Kinzinger became notorious for rebuffing former President Trump while he was in the White House and was one of the only Republicans to sit on the January 6th Committee, which prompted death threats.

• Kinzinger did not seek re-election in 2022.
• "I never thought I'd be here, but listen, you never thought you'd see me here, did you?" Kinzinger joked to a laughing crowd.

Zoom out: Other Illinois lawmakers who hit the stage on Thursday night included U.S. Rep. Raja Krishnamoorthi, The Pack Drumline and the tunes were spun by Chicago's DJ Metro.