Cate Edwards takes the stand today to testify in her father’s trial, and news outlets are waiting with bated breath to hear what she has to say.

Her father, John Edwards, is up against six counts related to campaign violations when he ran for president in 2008; he is pleading not guilty to the charges of taking $1 million in contributions to keep his mistress out of the public eye while his wife Elizabeth suffered with cancer. She succumbed to the disease in 2010.

Cate is Edwards’ oldest daughter and has already made her feelings about the mistress–Rielle Hunter–very clear. Last October, Hunter was banned from her wedding, although she did invite her father and his daughter with Hunter, Frances Quinn. The 3-year old did not attend, however.

Cate has attended the trial every day but left the courtroom in tears during testimony regarding her mother’s reaction to the news that John was having an affair. Whether or not she can help her father avoid his expected 30-year prison sentence remains to be seen.