Photos: First GOP debate

Republican presidential candidate Donald Trump gestures during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

Republican presidential candidate Ohio Gov. John Kasich speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate Ben Carson speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Wisconsin Gov. Scott Walker speaks as Donald Trump listens during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate Sen. Marco Rubio, R-Fla., speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Donald Trump answers a question during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate New Jersey Gov. Chris Christie during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Sen. Ted Cruz, R-Texas, speaks as former Arkansas Gov. Mike Huckabee, left, listens during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate former Florida Gov. Jeb Bush during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Sen. Rand Paul, R-Ky., speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate and Ohio Gov. John Kasich speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Donald Trump, left, speaks as Jeb Bush listens during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidates from left, Marco Rubio, Jeb Bush and Ben Carson talk during a break during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate and Sen. Ted Cruz, R-Texas, speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidate Donald Trump speaks as Wisconsin Gov. Scott Walker listens during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate and former Arkansas Gov. Mike Huckabee speaks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)

AP Photo/John Minchillo

Republican presidential candidates from left, Chris Christie, Marco Rubio, Ben Carson, Scott Walker, Donald Trump, Jeb Bush, Mike Huckabee, Ted Cruz, Rand Paul, and John Kasich take the stage for the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate, Sen. Lindsey Graham, R-S.C., participates in a rapid fire Q&A with Facebook at their lounge at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight's first Republican presidential debate. Graham has not qualified for the primetime debate and will be participating in a pre-debate forum with six other non-qualifying candidates. (AP Photo/Andrew Harnik) — Republican presidential candidate, Sen. Lindsey Graham, R-S.C., participates in a rapid fire Q&A with Facebook at their lounge at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. Graham has not qualified for the primetime debate and will be participating in a pre-debate forum with six other non-qualifying candidates. (AP Photo/Andrew Harnik)

Republican presidential candidate, Sen. Marco Rubio, R-Fla., poses for a photograph with a supporter after speaking at a rally at Town Hall in Cleveland, Wednesday, Aug. 5, 2015, before Thursday's first Republican presidential debate being held at the Quicken Loans Arena. (AP Photo/Andrew Harnik) — Republican presidential candidate, Sen. Marco Rubio, R-Fla., poses for a photograph with a supporter after speaking at a rally at Town Hall in Cleveland, Wednesday, Aug. 5, 2015, before Thursday’s first Republican presidential debate being held at the Quicken Loans Arena. (AP Photo/Andrew Harnik)

Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks with a member of the media at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight's first Republican presidential debate. (AP Photo/Andrew Harnik) — Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks with a member of the media at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. (AP Photo/Andrew Harnik)

Republican presidential candidate Ben Carson participates in a rapid fire Q&A with Facebook at their lounge at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight's first Republican presidential debate. (AP Photo/Andrew Harnik) — Republican presidential candidate Ben Carson participates in a rapid fire Q&A with Facebook at their lounge at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. (AP Photo/Andrew Harnik)

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum walks into the the Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight's first Republican presidential debate. Santorum has not qualified for the primetime debate and will be participating in a pre-debate forum with six other non-qualifying candidates. (AP Photo/Andrew Harnik) — Republican presidential candidate, former Pennsylvania Sen. Rick Santorum walks into the the Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. Santorum has not qualified for the primetime debate and will be participating in a pre-debate forum with six other non-qualifying candidates. (AP Photo/Andrew Harnik)

Republican presidential candidate, Ohio Gov. John Kasich, center, greets members of the media at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

A worker cleans the sidewalk in front of the Quicken Loans Arena in Cleveland, Wednesday, Aug. 5, 2015, before Thursday’s first Republican presidential debate being held at the arena. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Flags fly in front of the Quicken Loans Arena in Cleveland, Wednesday, Aug. 5, 2015, before Thursday’s first Republican presidential debate being held at the arena. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks to a reporter as he makes his way through the media center at Quicken Loans Arena in Cleveland, Thursday, Aug. 6, 2015, before tonight’s first Republican presidential debate. Santorum has not qualified for the primetime debate and will be participating in a pre-debate forum with six other non-qualifying candidates. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

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Ten men will take the stage for the GOP debate at 9 p.m. Thursday in Cleveland, Ohio. The debate will be broadcast on Fox News and is the first of six Republican Party-sanctioned debates scheduled ahead of the primary election season. Seven other candidates will participate in a pre-debate forum Thursday afternoon.