Today in Pictures: January 30

A tree stands in a snow-covered field during at sunset Friday, Jan. 29, 2016, near Spencer, Iowa. Jae C. Hong / AP On Monday night, thousands of Iowans will gather in community centers, fire stations, libraries and town halls to have the nation's first say in who the Republican and Democratic presidential nominees should be.

Migrants and refugees try to keep warm by a fire as they wait for a train after crossing the Macedonian border into Serbia, near the town of Presevo, on Friday evening, Jan. 29. More than one million migrants and refugees crossed the Mediterranean Sea to Europe in 2015, nearly half of them Syrians, according to the UN refugee agency, UNHCR.

The remains of the boat that was carrying migrants is seen off the shore near the Aegean town of Ayvacik, Turkey, on Jan. 30, 2016. A boat carrying migrants to Greece hit rocks off the Turkish coast on Saturday and capsized, killing at least 33 people, including five children, officials and news reports said. Some 75 other migrants were rescued. A Turkish government official said he expects the death toll from the incident to rise as rescue workers try to reach other migrants believed trapped inside the wreckage of the boat which sank shortly after departing from the Aegean resort of Ayvacik.

A man stands next to the body of a migrant child washed up on a beach in Ayvacik, Turkey, on Jan. 30, 2016 after at least 33 migrants drowned when their boat sank in the Aegean Sea while trying to cross from Turkey to Greece, Turkey's state-run Anatolia news agency reported. The migrants, who included those from Myanmar, Afghanistan and Syria, set sail from the Canakkale province to reach the nearby Greek island of Lesbos, Anatolia said. EOZAN KOSE/AFP/Getty Images

A rebel fighter, reportedly belonging to the Faylaq al-Rahman brigade, looks up from his hiding spot in the rebel-controlled area of Arbeen, on the outskirts of the Syrian capital Damascus on Jan. 29, 2016. AMER ALMOHIBANY/AFP/Getty Images

A masked reveller poses during the Venice Carnival in Piazza San Marco on Jan. 30. ALESSANDRO BIANCHI/Reuters

Personnel from the Japanese embassy wave to the plane carrying Japan's Emperor Akihito and Empress Michiko as they depart from the Villamor Airbase in Manila on Jan. 30, 2016. The emperor and empress are on a five-day visit to the Philippines. NOEL CELIS/AFP/Getty Images

Angelique Kerber of Germany celebrates her win against Serena Williams of the U.s. in the the Women's final match at the Australian Open tennis tournament in Melbourne on Jan. 30. EPA/JOE CASTRO

Republican presidential candidate Donald Trump speaks during a campaign event at Dubuque Regional Airport on Jan. 30 in Dubuque, Iowa.

Democratic presidential candidate former and Secretary of State Hillary Clinton speaks during a \"get out the caucus\" event at The Col Ballroom on Friday evening, Jan. 29, in Davenport, Iowa. (Photo by Justin Sullivan/Getty Images)