(CNN) - In a rousing speech before a standing-room-only audience at a conservative conference in Iowa on Saturday, Minnesota Republican Rep. Michele Bachmann said "I'm in" for 2012.
Bachmann then asked the crowd to join her in pursuing her goals for the country. The thinly veiled comment was at the very least another step in her consideration of a possible run for the Republican presidential nomination.
Referring to the ideals of the founding fathers, Bachmann said, "You cannot build a nation unless it is built upon a rock-solid foundation. And America has that and it is the character, and it is the values of our people and that's why I am so absolutely confident in 2012.
"And so America has decided they're in for 2012, and so that's my question for you here today in Iowa. Are you in? Are you in for 2012? Are you in? Are you going to make it happen? Are we going to take our country back?" Bachmann asked, to cheers from the crowd.
"I agree with you! I say we do, I'm in, you're in, we will take this back in 2012," she said.
Earlier this week, CNN learned that Bachmann will form a presidential exploratory committee. The Minnesota Republican plans to file papers for the committee in early June, with an announcement likely around that same time.
But a source close to the congresswoman said that Bachmann could form the exploratory committee even earlier than June so that she could participate in early Republican presidential debates.
During the speech at Republican Rep. Steve King's “Conservative Principles” rally, Bachmann also touched on topics ranging from homeland security and immigration to health care, taxes and the spending fight in Washington. The possible GOP 2012 presidential contender bashed Obama administration policies including the recent military operation in Libya, and underlined her commitment to conservative values.
Speaking about the recent military action in Libya, Bachmann criticized President Barack Obama for engaging the U.S. in a "third Middle Eastern war" and compared Obama to former President Jimmy Carter.
"The president has us engaged it yet another, third Middle Eastern war, talk about March Madness, can anyone say Jimmy Carter?" Bachmann said.
On the health care bill, Bachmann hit at the administration for passing legislation she said would lead to increased costs. She referred to a “government takeover” of health care.
"The ultimate arrogance coming out of Washington is Obamacare. With this bill we're all going to be spending more and getting less," Bachmann said.
Bachmann also took aim at liberal Democrats such as New York Rep. Anthony Weiner and former Speaker of the House Nancy Pelosi, D-California, earning boos from the crowd when she mentioned Weiner's name.
She blamed Pelosi for the rise in the national debt, saying "75 percent - that is the amount the national debt has increased just under the four years that Nancy Pelosi had the gavel."
Bachmann returned to themes she has touted throughout her career, slamming Washington for raising taxes and pushing for a reduction in government spending.
Referring to the tax code as a "weapon of mass destruction," Bachmann called for it to be abolished, saying, "From there we are going to fly."
- CNN Senior Political Editor Mark Preston contributed to this report.