Holly Nicole Solomon, 31, pleaded guilty to two counts of aggravated assault in the incident that happened just days after President Barack Obama's re-election.
Authorities say Solomon was upset about Obama's re-election and began arguing with her husband when she found out that he didn't vote.
Her husband, who suffered a fractured pelvis, told investigators that Solomon believed their family was going to face hardship as a result of Obama's election.
Solomon told police she was trying to scare her husband by stopping the vehicle close to him but she accidentally stepped on the accelerator and struck him.
She is expected to be sentenced on May 21.
Copyright 2015 The Associated Press modified.