In 2004, Kelly applied for a job at Fox News.
She contributed legal segments for Special Report with Brit Hume and hosted her own legal segment, Kelly's Court, during Weekend Live.
She appeared on a weekly segment on The O'Reilly Factor and occasionally filled in for Greta Van Susteren on On the Record, where most of her reporting focused on legal and political matters.
She occasionally contributed as an anchor, but more often as a substitute anchor on weekends.
On February 1, 2010, Kelly began hosting her own two-hour afternoon show, America Live, which replaced The Live Desk.
She was a guest panelist on Fox News' late-night satire program Red Eye w/ Greg Gutfeld.
In 2010, viewership for America Live increased by 20%, averaging 1,293,000 viewers, and increased by 4% in the 25–54 age demographic, averaging 268,000 viewers.
In December 2010, Kelly hosted a New Year's Eve special with Bill Hemmer.

Kelly received media attention for her coverage of the results of the 2012 United States presidential election.
On November 6, 2012 (the night of the election), Fox News' decision desk projected that Obama would win a second term after part of the results had been released.
In response to Karl Rove's opposition to this projection, Kelly walked backstage to the decision desk on camera and spoke with them, and also asked Rove, "Is this just math that you do as a Republican to make yourself feel better?
Or is this real?"

Kelly left America Live in July 2013, and took maternity leave.
On October 7, 2013, she began hosting a new nightly program, The Kelly File.
The Kelly File was occasionally the channel's ratings leader, topping The O'Reilly Factor.

In December 2013, Kelly commented on a Slate on The Kelly File: "For all you kids watching at home, Santa just is white, but this person is just arguing that maybe we should also have a black Santa," adding, "But Santa is what he is, and just so you know, we're just debating this because someone wrote about it."
Kelly also said that Jesus was a white man later in the segment.
Soon after, Jon Stewart, Stephen Colbert, Rachel Maddow, Josh Barro, and others satirized her remarks.
Two days later, she said on the air that her original comments were "tongue-in-cheek", and that the skin color of Jesus is "far from settled".

In June 2015, Kelly interviewed Jim Bob Duggar and Michelle Duggar of 19 Kids and Counting regarding their son Josh Duggar's alleged molestation of five girls in 2002.
She later interviewed two of their daughters, Jill and Jessa.
This show's Nielsen national estimates ratings of 3.09 million viewers, above its average 2.11 million, ranked with the 3.2 million for the Malaysia Airlines Flight 17 coverage and 7.3 million for the Ferguson riots coverage.

In the Republican Party presidential debate on August 6, 2015, Kelly asked then-presidential candidate Donald Trump whether a man of his temperament ought to be elected president, noting that he has called various women insulting names in the past.
Kelly's moderating generated a range of media and political reactions and her professionalism was criticized by presidential candidate Trump.
Kelly responded to Trump's criticism by saying she would not "apologize for doing good journalism".
Trump declined to attend the Iowa January 28 debate that she moderated.
After the debate and off-camera, Ted Cruz said that Kelly had referred to Trump off-camera as "Voldemort", though Fox News denied it.
Bill Maher complimented Kelly as being "so much better" than the candidates who attended the January 28 debate and argued that she was a more viable candidate for the Republican nomination.
In an interview with CBS News Sunday Morning, Kelly reflected that she was disappointed with the lack of support she received from coworker Bill O'Reilly and CNN, the latter airing a Trump event the same time as the debate.
In April, at her request, Kelly met with Trump at Trump Tower, having "a chance to clear the air".
The following month, after interviewing Trump and being met with mixed reception, she expressed interest in doing another one with him.
In J
In 2004, Kelly applied for a job at Fox News. She contributed legal segments for Special Report with Brit Hume and hosted her own legal segment, Kelly's Court, during Weekend Live. She appeared on a weekly segment on The O'Reilly Factor and occasionally filled in for Greta Van Susteren on On the Record, where most of her reporting focused on legal and political matters. She occasionally contributed as an anchor, but more often as a substitute anchor on weekends. On February 1, 2010, Kelly began hosting her own two-hour afternoon show, America Live, which replaced The Live Desk. She was a guest panelist on Fox News' late-night satire program Red Eye w/ Greg Gutfeld. In 2010, viewership for America Live increased by 20%, averaging 1,293,000 viewers, and increased by 4% in the 25–54 age demographic, averaging 268,000 viewers. In December 2010, Kelly hosted a New Year's Eve special with Bill Hemmer.
Kelly received media attention for her coverage of the results of the 2012 United States presidential election. On November 6, 2012 (the night of the election), Fox News' decision desk projected that Obama would win a second term after part of the results had been released. In response to Karl Rove's opposition to this projection, Kelly walked backstage to the decision desk on camera and spoke with them, and also asked Rove, "Is this just math that you do as a Republican to make yourself feel better? Or is this real?"
Kelly left America Live in July 2013, and took maternity leave. On October 7, 2013, she began hosting a new nightly program, The Kelly File. The Kelly File was occasionally the channel's ratings leader, topping The O'Reilly Factor.
In December 2013, Kelly commented on a Slate on The Kelly File: "For all you kids watching at home, Santa just is white, but this person is just arguing that maybe we should also have a black Santa," adding, "But Santa is what he is, and just so you know, we're just debating this because someone wrote about it." Kelly also said that Jesus was a white man later in the segment. Soon after, Jon Stewart, Stephen Colbert, Rachel Maddow, Josh Barro, and others satirized her remarks. Two days later, she said on the air that her original comments were "tongue-in-cheek", and that the skin color of Jesus is "far from settled".
In June 2015, Kelly interviewed Jim Bob Duggar and Michelle Duggar of 19 Kids and Counting regarding their son Josh Duggar's alleged molestation of five girls in 2002. She later interviewed two of their daughters, Jill and Jessa. This show's Nielsen national estimates ratings of 3.09 million viewers, above its average 2.11 million, ranked with the 3.2 million for the Malaysia Airlines Flight 17 coverage and 7.3 million for the Ferguson riots coverage.
In the Republican Party presidential debate on August 6, 2015, Kelly asked then-presidential candidate Donald Trump whether a man of his temperament ought to be elected president, noting that he has called various women insulting names in the past. Kelly's moderating generated a range of media and political reactions and her professionalism was criticized by presidential candidate Trump. Kelly responded to Trump's criticism by saying she would not "apologize for doing good journalism". Trump declined to attend the Iowa January 28 debate that she moderated. After the debate and off-camera, Ted Cruz said that Kelly had referred to Trump off-camera as "Voldemort", though Fox News denied it. Bill Maher complimented Kelly as being "so much better" than the candidates who attended the January 28 debate and argued that she was a more viable candidate for the Republican nomination. In an interview with CBS News Sunday Morning, Kelly reflected that she was disappointed with the lack of support she received from coworker Bill O'Reilly and CNN, the latter airing a Trump event the same time as the debate. In April, at her request, Kelly met with Trump at Trump Tower, having "a chance to clear the air". The following month, after interviewing Trump and being met with mixed reception, she expressed interest in doing another one with him. In J
Megyn Kelly