The outspoken activist took to her Twitter page to slam the results of the presidential race, which saw Obama beat Republican challenger Mitt Romney.
Jackson posted a link to her Facebook page, which included an image of a gravestone with the words "RIP America" on it, and said: "I can't stop crying."
"America died," she wrote. "I can't stop crying. America died."
Jackson continued her complaints on her Facebook page, writing: "The Democrat party who voted God out of their platform and adopted Romans 1 as their platform won. In the Good vs. Evil Battle, today... evil won."
Back on her Twitter page, Jackson concluded: "Thanks a lot Christians, for not showing up. You disgust me."
Jackson has previously been the subject of controversy for her political views after she slammed a gay kiss on Glee, claimed that President Obama is a member of the Muslim Brotherhood, and suggested that gay marriage would "make God mad".
Donald Trump has also complained about the election result on his Twitter page and called for a "revolution".
However, a number of celebrities - including Beyoncé and Cher - congratulated Obama on his victory and both Mariah Carey and will.i.am penned songs to celebrate the news.
Photo gallery - celebrities voting in the US presidential election: