Sri Lanka's disputed prime minister Mahinda Rajapaksa folds his hands in prayer as he is blessed by a Buddhist monk after signing his resignation paper in Colombo, Sri Lanka, Saturday, Dec. 15, 2018. Rajapaksa resigned on Saturday, saying he wants to end a political impasse over his appointment. (AP Photo/Eranga Jayawardena)

FILE - In this March 22, 2018, file photo, Office of Management and Budget Director Mick Mulvaney speaks in the Brady press briefing room at the White House in Washington. President Donald Trump has named Mulvaney as his new chief of staff. (AP Photo/Manuel Balce Ceneta, File)

FILE - In this Nov. 29,2018, file photo, Sri Lanka's disputed Prime Minister Mahinda Rajapaksa, gestures as he arrives for a meeting with his supporting lawmakers at the parliamentary complex in Colombo, Sri Lanka. A Sri Lankan lawmaker said that the disputed Prime Minister Rajapaksa will resign Saturday to end the country's political crisis. (AP Photo/Eranga Jayawardena, File)

FILE - In this Nov. 13, 2018, file photo, U.S. Rep. Bruce Poliquin, R-Maine, speaks at a news conference in Augusta, Maine. Poliquin, who has disputed his loss in the first ranked-choice congressional race in U.S. history is dropping his request for a recount. Poliquin challenged the system in federal court, and a judge ruled against him on Thursday, Dec. 13, 2018. He also requested the recount, which has been taking place in Augusta. (AP Photo/Robert F. Bukaty, files)

People wearing yellow vests demonstrate in Peyrorade, southwestern France, Friday, Dec.14, 2018. French President Emmanuel Macron is calling for "calm" and "order" ahead of promised new protests by the broad yellow-vest movement after rioting in recent weeks. (AP Photo/Bob Edme)

French President Emmanuel Macron speaks during a media conference during an EU summit in Brussels, Friday, Dec. 14, 2018. European Union leaders expressed deep doubts Friday that British Prime Minister Theresa May can live up to her side of their Brexit agreement and they vowed to step up preparations for a potentially-catastrophic no-deal scenario. (AP Photo/Francisco Seco)

FILE - This Dec. 21, 2016 file photo shows the Trump International Hotel at 1100 Pennsylvania Avenue NW, in Washington. The Justice Department is challenging a Maryland federal judge’s decision to allow a case accusing President Donald Trump of profiting off the presidency to proceed in district court. It wants an appeals court to take up the case instead. (AP Photo/Alex Brandon, File)

The Capitol is seen in Washington, Friday morning, Dec. 14, 2018. Parties and Christmas cookies only soothe so much in the chilly Capitol after two years of President Donald Trump’s provocations, dramas like Supreme Court Justice Brett Kavanaugh’s confirmation and the elections that flipped the House majority to Democrats. Everyone wants to go home, yet both chambers were scheduled to be in session next week over hefty matters, including the budget and criminal sentencing reform. (AP Photo/J. Scott Applewhite)