Six people were arrested Wednesday morning at a north central Illinois plant run by Bain Capital-owned Sensata Technologies, where 170 workers are set to lose their jobs by the end of the year.

The closing of the Sensata plant has turned into an unlikely presidential campaign issue, as the lost manufacturing jobs will be relocated to China. Republican presidential candidate Mitt Romney helped found Bain Capital, and several workers from Sensata have pleaded with the former Massachusetts governor to intervene at the private equity firm and prevent the offshoring of their jobs, so far without success.

According to 99 Uniting, a progressive group involved with several Sensata employees, the arrestees Wednesday included the mother of a current Sensata worker, as well as a former Sensata worker and her son, all of whom had taken part in a sit-in inside the plant. The Freeport, Ill., police department confirmed to The Huffington Post that six people were arrested in all.

The arrestees had come to the plant to present a manager with a petition regarding the severance packages of soon-to-be-laid-off workers, according to Tom Gaulrapp, who's set to lose his job on Nov. 5. Gaulrapp said they weren't able to meet with a manager, so they refused to leave and sat in the lobby. The police soon arrived.

"They held their ground," Gaulrapp told HuffPost. "Their commitment and dedication to our cause restores our faith and keeps us going ... You see these people who are willing to get arrested [for you] and it's absolutely amazing."

The lockups come on the heels of another batch of arrests last week, when three Freeport residents were detained for blocking the path of a truck that was hauling equipment out of the Sensata plant, which produces electronic sensors for cars. Those people, all Freeport community members, were given civil citations for refusing to obey a police order.

Several Sensata workers have set up a protest encampment across the street from the plant called "Bainport," which they've deemed the home of the "Romney economy." They've also shown up at Romney campaign offices to present the candidate with petitions against the plant closure, although they haven't elicited much of a response from the campaign. Romney has not held any control at Bain for years, although he continues to receive tax breaks due to his Sensata investments.

Progressive activists have tried to use the Sensata plant closing to bolster their case that Romney's brand of capitalism hurts everyday workers. Many such activists, not to mention the Sensata employees themselves, had hoped the looming shutdown would pop up in Tuesday night's debate, particularly when Romney and Obama started trading jabs on the topic of offshoring.

According to Gaulrapp, workers at "Bainport" were watching the debate and "sitting on the edge of their seats," waiting for mention of Sensata.

Alas, it never happened.

"It touches a nerve with people," Gaulrapp said of Sensata. "We're not kidding ourselves anymore -- short of a miracle, we're not going to save our jobs. But if we can stop somebody else from doing this, then that's success."

Related on HuffPost:

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  • SEC Filings List Romney As 'Chief Executive Officer'

    According to the <em><a href="" target="_hplink"><em>Boston Globe</em></a></em>, Securites and Exchange Commission documents filed by Bain Capital after February 1999 list Romney as the private equity firm's "stole stockholder, chairman of the board, chief executive officer, and president."

  • $100,000+ Salary

    The <em><a href="" target="_hplink">Globe</a></em> also found financial disclosure forms filed by Romney that indicate he still owned 100 percent of Bain in 2002, and earned at least $100,000 as an "executive" for the firm in 2001 and 2002.

  • 2002 Testimony

    As <a href="" target="_hplink">The Huffington Post</a> reported, sworn testimony given by Romney in 2002 undermined his claims that he left Bain in 1999. In that testimony, given as part of a hearing to determine if he had sufficient Massachusetts residency to run for governor, Romney said that he "remained on the board" of the LifeLike Co., which Bain held a stake in at the time. LifeLike's 2000 <a href="" target="_hplink">corporate filing</a>, filed with the state of Colorado, lists Romney as a director.

  • More SEC Filings

    HuffPost's Jason Cherkis and Ryan Grim identified at least <a href="" target="_hplink">six documents</a> filed by Bain Capital with the SEC from 1999 to 2001 that were signed by Mitt Romney. Most of the documents refer to Romney as the "reporting person."

  • 'Managing Member' In 2002

    HuffPost <a href="" target="_hplink">reported</a> on a 2002 corporate document filed with the state of Massachusetts that shows Romney listed as one of two managing members of Bain Capital Investors, an entity of the private equity firm.

  • Signed Documents After 1999

    Romney signed an SEC filing in November 1999 pursuant to Bain's partial acquisition of medical-waste firm Stericycle, <em><a href="" target="_hplink">Mother Jones</a></em> reported. The filing noted that he was the "sole shareholder, Chairman, Chief Executive Officer and President" of the Bain entities involved in the $75 million deal.

  • 2001 & 2002 SEC Filings

    <a href="" target="_hplink">Talking Points Memo</a> uncovered two SEC filings from July 2000 and February 2001. In both, Romney lists his "principal occupation" as "Managing Director of Bain Capital, Inc."

  • 1999 News Reports

    As Slate's <a href="" target="_hplink">Dave Weigel</a> pointed out, Romney's campaign has cited news reports from 1999 that clearly state that Romney left Bain in 1999. However, those same news reports state that Romney would still be involved with the company. "Romney said he will stay on as a part-timer with Bain, providing input on investment and key personnel decisions," read one such report from the <em>Boston Herald</em>

  • Former Partner Speaks Out

    A former Bain Capital partner, Ed Conard, said during an appearance on MSNBC's "<a href="" target="_hplink">Up W/Chris Hayes</a>" that Romney was "legally" the CEO and sole owner of Bain Capital until 2002, as an ownership battle dragged on after Romney left to take over the Salt Lake City Olympics. "We had a very complicated set of negotiations that took us about two years for us to unwind. During that time a management committee ran the firm, and we could hardly get Mitt to come back to negotiate the terms of his departure because he was working so hard on the Olympics," Conard said.

  • Relationships With Problematic Companies

    HuffPost's Sam Stein <a href="" target="_hplink">reported</a> that SEC filings link Romney to politically problematic companies after his alleged 1999 departure from Bain: <blockquote>A Huffington Post review of SEC files unearthed six separate occasions in which Romney was listed as a member of "the Management Committee" of both Bain Capital Investment Partners and BCIP Trust, "deemed to share voting and dispositive power with respect to" shares held of DDi. In one of those filings, Romney is listed as president and managing director of Bain Capital, Inc. The dates of those filings range from April 14, 2000 to May 10, 2001 -- all after Romney had left for Salt Lake City. In one March 2001 filing, Romney signed the document as the "reporting person."</blockquote>

  • 'General Partner'

    According at a <a href="" target="_hplink">document</a> filed with the California Secretary of State's office in July 1999, Romney was listed as a "general partner" at Bain Capital Partners. Romney's signature appears on the document. Romney remained on record as a general partner until California was notified of his resignation in June 2003.