Donald Trump says that he plans to sue Miss Pennsylvania, Sheena Monnin, who resigned from the Miss Universe Organization on Tuesday after alleging that the 2012 Miss USA contest was rigged.

She made a very false charge and she knows it was a false charge, Trump said Wednesday on Good Morning America, referring to Miss Pennsylvania Sheena Monnin. I think that, frankly, she should apologize but we will be bringing a lawsuit against her.

Miss Pennsylvania Sheena Monnin, a 27-year-old who hopes to earn a doctorate in theology, announced her resignation from the Miss Universe Organization on Tuesday night, two nights after Miss Rhode Island, Olivia Culpo, was crowned Miss USA.

She declared her decision to leave the Miss Universe Organization for good on Facebook.

I have decided to resign my position as Miss Pennsylvania USA 2012, Monnin posted on her Facebook page. Effective immediately I have voluntarily, completely, and utterly removed myself from the Miss Universe Organization. In good conscience I can no longer be affiliated in any way with an organization I consider to be fraudulent, lacking in morals, inconsistent, and in many ways trashy. I do not support this system in any way. In my heart I believe in honesty, fair play, a fair opportunity, and high moral integrity, none of which in my opinion are part of this pageant system any longer.

After readers began asking Monnin for more information, she revealed that fraud was behind her resignation as Miss Pennsylvania. Monnin claims that a fellow Miss USA contestant saw a list of the top five final contestants before the pageant even aired on June 3.

I witnessed another contestant who said she saw the list of the Top 5 BEFORE THE SHOW EVER STARTED proceed to call out in order who the Top 5 were before they were announced on stage, Monnin posted on Facebook. Apparently the morning of June 3rd she saw a folder lying open to a page that said 'FINAL SHOW Telecast, June 3, 2012′ and she saw the places for Top 5 already filled in. Thinking she was just seeing a rehearsal fake top 5 from a previous day she walked away, then realized that it had without a doubt been labeled as the Final Show Telecast, June 3rd.

After it was indeed the Top 5 I knew the show must be rigged; I decided at that moment to distance myself from an organization who did not allow fair play and whose morals did not match my own. That is all I know about this. If this contestant would like to step forward as an eye witness and as being the one who saw the sheet with the Top 5 already selected before the judges ever saw the Top 16, then perhaps action can be taken. As for me, I believe her words and I will not encourage anyone to compete in a system that in my opinion and from what I witnessed is dishonest.

But Donald Trump and the Miss Universe Organization have both called Sheena Monnin's allegations ludicrous.

It's absolutely ridiculous, Trump said Wednesday. She lost and if you look at her compared to the people who were in the top 15, you would understand why she's not in the top 15. It's a very, very sad situation.

The business mogul added that the contestant who supposedly saw the top five names, who remains anonymous, denied Monnin's account. My people said that they've already interviewed that person and that person said it's not true, he said.

Ernst & Young is one of the great, respected accounting firms. They do the tabulation, Trump said. It's not like we care who the final contestants are. You take the 16 and you go down to 10 to five and then you have a winner and then it's all tabulated. The judges are all celebrities and they make their pick and that's the end of it.

Although Miss Pennsylvania told the public that she resigned because of the Miss USA 2012 alleged fraud, she previously sent an email to the Miss Universe Organization saying that she was resigning due to the organization's acceptance of transgender contestants.

In a statement sent to the Miss Universe Organization on Monday, Monnin cited the organization's acceptance of transgender contestants as the reason behind her leaving. Transgender beauty queen Jenna Talackova, was granted permission to compete in the Miss Universe Canada pageant after a heated national debate.

I am officially and irrevocably resigning the title of Miss Pennsylvania USA 2012, wrote Monnin. I refuse to be part of a pageant system that has so far and so completely removed itself from its foundational principles as to allow and support natural born males to compete in it. This goes against ever moral fiber of my being. I believe in integrity, high moral character, and fair play, none of which are part of this system any longer.

Miss Rhode Island made headlines Monday morning after answering the polarizing question: Would you feel it would be fair that a transgender woman wins the Miss USA title over a natural-born woman?

I do think that that would be fair, but I can understand that people would be a little apprehensive to take that road because there is a tradition of natural-born women, but today where there are so many surgeries and so many people out there who have a need to change for a happier life, I do accept that because I believe it's a free country, Culpo responded, and the crowd went wild.

Donald Trump believes that Sheena Monnin's decision to resign was based solely on the fact that she did not win.

I don't think that she had an issue with that, he said regarding the pageant's new transgender policy. I think her primary issue was that she lost and she's angry about losing and, frankly, in my opinion, I saw her for barely a second, she didn't deserve to be in the top 15.