A TV monitor inside the Greek paliament shows the speech of Greece's Prime Minister Alexis Tsipras during a parliament session in Athens on Tuesday, Dec. 18, 2018. Greek lawmakers are debating the heavily-indebted country's draft budget for 2019, the first since Greece exited an eight-year bailout program. (AP Photo/Petros Giannakouris)

FILE - In this May 15, 2018, file photo, Barbara Underwood interviews with legislative leaders in Albany, N.Y., for the office of New York attorney general. Underwood and President Donald Trump’s charitable foundation reached a deal on Tuesday, Dec. 18, 2018, to dissolve the foundation and distribute its remaining assets to other nonprofit groups. (AP Photo/Hans Pennick, File)

FILE - In this file photo dated Thursday, Dec. 13, 2018, Belgian Prime Minister Charles Michel arrives for an EU summit in Brussels. Belgian Prime Minister Charles Michel has announced his resignation in address at parliament, Tuesday, Dec. 18, 2018, and says he will notify the king. (AP Photo/Geert Vanden Wijngaert, FILE)

Demonstrators wearing yellow vests face riot police officers during a visit by French Foreign Minister Jean-Yves Le Drian in Biarritz, southwestern France, Tuesday, Dec. 18, 2018. Yellow vest protesters occupied dozens of traffic roundabouts across France even as their movement for economic justice appeared to be losing momentum on the fifth straight weekend of protests. (AP Photo/Bob Edme)

FILE - In this March 2, 2017, file photo, Tucker Carlson, host of "Tucker Carlson Tonight," poses for photos in a Fox News Channel studio in New York. Some advertisers say they are leaving conservative host Carlson's show following his remarks referring to immigrants as “the world’s poor.” It’s the latest example of sponsors leaving a Fox News Channel show after controversy, but experts say the flap is likely to blow over. So far, the biggest advertisers are sticking with him and his show, “Tucker Carlson Tonight.” (AP Photo/Richard Drew, File)

FILE - In this Tuesday, Aug. 14, 2018 file photo cars are blocked on the Morandi highway bridge after a section of it collapsed, in Genoa, northern Italy. A large section of the bridge collapsed over an industrial area in the Italian city of Genova during a sudden and violent storm, leaving vehicles crushed in rubble below. (AP Photo/Antonio Calanni, File)

FILE - In this Dec. 3, 2018, file photo, In this photo provided by the U.S. Air Force, a SpaceX Falcon 9 rocket, carrying the Spaceflight SSO-A: SmallSat Express, launches from Space Launch Complex-4E at Vandenberg Air Force Base, Calif. President Donald Trump is expected to sign an executive order soon, possibly as early as Tuesday, Dec. 18, creating a U.S. Space Command that will better organize and advance the military's vast operations in space, U.S. officials say. (Senior Airman Clayton Wear/U.S. Air Force via AP, File)

FILE - In this Oct. 4, 2017 file photo, a little-known device called a "bump stock" is attached to a semi-automatic rifle at the Gun Vault store and shooting range in South Jordan, Utah. The Trump administration is moving to officially ban bump stocks, which allow semi-automatic weapons to fire rapidly like automatic firearms. A senior Justice Department official said Tuesday bump stocks will be banned under the federal law that prohibits machine guns. It will take effect in late March. (AP Photo/Rick Bowmer)