Carly Fiorina announces 2016 presidential run

Carly Fiorina made her 2016 presidential plans official Monday morning, announcing her candidacy on ABC’s "Good Morning America."

Actually, she first declared her candidacy via Twitter just minutes before making her television appearance, tweeting a link to the newly minted Carlyforpresident.com.

The former Hewlett-Packard CEO joins a growing Republican primary field, with popular conservative neurosurgeon Ben Carson having thrown his hat into the ring just last night. Fiorina has billed herself as an experienced leader with an understanding of the economy and technology but also as something of a Republican answer to Hillary Clinton. She called the former secretary of state and current Democratic presidential hopeful "focused, empathetic to a certain degree, intelligent, hard working," but ultimately, "clearly not trustworthy."

Fiorina made a name for herself in the tech industry, climbing the ranks at AT&T and becoming the CEO at Hewlett-Packard — and the first female head of a Fortune 20 company — in 1999 before being forced to retire in 2005. But she was not recognized in the political world until 2008, when she joined John McCain’s presidential campaign as an economic advisor (her $21.4 million Hewlett-Packard severance seen something of a liability for McCain and running mate Sarah Palin, who vowed to “stop multimillion dollar payouts” for corporate executives).

In 2010, after undergoing treatment for breast cancer the year before, she ran for U.S. Senate and lost to incumbent Democrat Barbara Boxer. On "Good Morning America" Monday, Fiorina said her lack of political experience is part of what makes her a good candidate.

"Our nation was intended to be a citizen goverment," Fiorina told host George Stephanopoulos. "Somehow we've come to this place in our nation's history where we think we need a professional political class. I don't believe that, and I wlll tell you, as I've been out there across the country, people don't believe that either. They're kinda tired of the political class, and they believe we need to return to a citizen government."

Later on in the show, Fiorina talked to host Robin Roberts about some of her personal battles, including overcoming breast cancer and losing her daughter Lori to addiction, which she addresses in her new book, "Rising to the Challenge."

Fiorina will sit down with Yahoo Global News Anchor Katie Couric at 2:45 p.m. ET Monday. And, according to a video she tweeted immediately after her "Good Mornina America" appearance, Fiorina will be taking questions from the public live via Periscope at 4 p.m. Eastern time.