PARIS, FRANCE - NOVEMBER 14: Bono and band members from the band U2 place flowers on the pavement near the scene of yesterday's Bataclan Theatre terrorist attack on November 14, 2015 in Paris, France. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Jeff J Mitchell/Getty Images)
Islamic State dominated news coverage for a big portion of 2015, making it the No. 1 story of the year as voted on by editors and news directors at the Associated Press.
The terror sparked by ISIS garnered 37 of 100 ballots cast; the runner-up story was the Supreme Court’s historic ruling legalizing gay marriage, which drew 13 first-place votes.
The No. 3 story also revolved around ISIS — the deadly terror attacks in Paris that killed 131 people on Nov. 13. That story shook up the presidential campaign, shifting both party’s subsequent debates to a focus on terrorism and candidates’ plans to defeat ISIS.
No. 4 was America’s mass shooting epidemic: “Throughout the year, mass shootings brought grief to communities across the U.S. and deepened frustration over the failure to curtail them,” the Associated Press wrote, listing shootings in San Bernardino, California; Charleston, South Carolina; Roseburg, Oregon; Chattanooga, Tennessee and at a Planned Parenthood in Colorado.
Rounding out the top 5 was the tension and shootings between police and African Americans, which spawned the #BlackLivesMatter movement.
Overall concern over terrorism ranked sixth; the 2016 presidential campaign followed at No. 7; the growing risk of climate change was eighth; the South Carolina church massacre finished at No. 9 and Europe’s migrant crisis ranked tenth.
2016 Presidential Contenders: The Race to the White House (Photos)
Republican Texas Senator Ted Cruz was the first person to officially throw his hat into the ring on March 23.
Getty Images
Republican Senator Rand Paul announced his candidacy on April 7.
Getty Images
Former First Lady and Secretary of State, Democrat Hillary Clinton announced she would again seek the Oval Office on April 12.
Getty Images
A Tea Party favorite, Florida Senator Marco Rubio announced his candidacy on April 13.
Getty Images
A self-described democratic socialist, Vermont Senator Bernie Sanders announced he would run on April 28.
Getty Images
Retired neurosurgeon, Dr. Ben Carson announced his candidacy on May 3. A native of Detroit, the Republican lived in Baltimore for 36 years.
Getty Images
The first woman to lead a Fortune 20 company, Republican Carly Fiorina announced her candidacy on May 4.
Getty Images
Former Arkansas governor and Fox News host Mike Huckabee announced his second presidential run in the GOP field on May 5.
Getty Images
A former Republican senator from Pennsylvania, Rick Santorum announced his second presidential bid on May 27.
Getty Images
Former New York Governor George Pataki announced the launch of his presidential campaign with a YouTube video on May 28.
Getty Images
Martin O'Malley, a Democrat and former governor of Maryland, joined the race on May 30.
Getty Images
Lindsey Graham, a Republican senator from South Carolina, announced he would run for the highest office on June 1.
Getty Images
A former Republican and independent governor of Rhode Island, Lincoln Chafee announced his bid for the Democratic nomination on June 3.
Getty Images
Rick Perry threw his hat into the ring for a second time on June 4. The Republican was the longest serving governor in Texas history.
Getty Images
The son of one former president and brother of another, former Florida Governor Jeb Bush announced his bid for the Republican nomination on June 15.
Getty Images
Republican real estate mogul Donald Trump threw his hat into the presidential ring on June 16, saying he'd be “the greatest jobs president that God ever created.”
Getty Images
"I'm running for President of the United States of America," tweeted Louisiana's Republican Governor Bobby Jindal, who used social media to announce his candidacy on June 24.
Getty Images
After declaring that "both parties have failed our country," New Jersey's Republican Governor Chris Christie announced his intention to run on June 30.
Getty Images
Jim Webb, a decorated Vietnam vet and the former Democratic governor of Virginia, announced his candidacy on July 2.
Getty Images
Wisconsin's Republican Governor Scott Walker announced his candidacy on July 13 with a campaign video.
Getty Images
Ohio Governor John Kasich announced his candidacy for the Republican nomination on July 21, saying no other candidate else has his experience dealing with deficits, unemployment and national security.
Getty Images
Jim Gilmore, former Army intelligence officer and Republican governor of Virginia, announced his candidacy on July 30.
Getty Images
1 of 22
From Jeb Bush to Hillary Clinton and Donald Trump, the race continues to grow
Republican Texas Senator Ted Cruz was the first person to officially throw his hat into the ring on March 23.