(CNN) - Sarah Palin skewered President Barack Obama on Monday and urged voters to turn out for Mitt Romney in a Facebook post, as close to an endorsement as she's come for the GOP presidential nominee.
"Tuesday is our chance to turn things around," the former Alaska governor wrote. "Please vote for Governor Mitt Romney and the commonsense conservatives running for office in your states."
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Her post went up shortly after midnight East Coast time–during the 8 p.m. hour in Alaska.
While the 2008 Republican vice presidential nominee had not previously offered an official endorsement to Romney or campaigned for the candidate, Palin's political action committee last month donated $5,000 to his White House bid. She also offered some praise for the GOP ticket when Rep. Paul Ryan was announced as Romney's running mate in August.
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Palin said in March she voted for Newt Gingrich in her state's GOP primary. During the hard fought contest between Gingrich, Romney, and former Pennsylvania Sen. Rick Santorum, she chided the eventual nominee for not connecting enough with conservative voters.
The bulk of Palin's Facebook post on Monday, however, focused on her disapproval of Obama, leaving the latter end of her statement to encourage voters to cast their ballots for Romney.
In her criticism, Palin charged Obama with failing to live up to his 2008 campaign promises, drastically increasing the federal debt, and providing a lack of leadership in the aftermath of the U.S. consulate attack in Benghazi, Libya.
"What's past is prologue. We know what we will get from a second Obama term because we've all endured his first term," she wrote.
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She also stressed an emphasis on congressional races, cautioning against Democratic gains in either chamber.
"We saw the destruction a Democrat controlled White House, House, and Senate brought us after the 2008 election. Our country can't afford that again," she wrote. "Your vote is the only safeguard against that happening."
– CNN's Ashley Killough and Kevin Liptak contributed to this report.