(COMBO) This combination of pictures created on November 14, 2018 shows US First Lady Melania Trump during an event on a year of progress and action to combat the opioid crisis, in the White House on October 24, 2018 in Washington, DC, and White House Chief of Staff John Kelly during an event honoring the Immigration and Customs Enforcement and Customs and Border Protection services in the East Room of the White House in Washington, DC on August 20, 2018. - President Donald Trump is reported to be preparing a reshuffle at the White House -- fueled by fallings out between his wife and senior staff -- after a week of angry brooding over midterm elections that weakened his grip on Congress. The start to the second half of Trump's first term is enveloped in gloom as the president surveys the damage from the midterms, tension with some of America's closest allies, and now turmoil inside the administration.The biggest name on the chopping block, according to multiple US media reports, is chief of staff John Kelly.His position, tenuous for months, has been undermined further by First Lady Melania Trump's anger that Kelly refused to promote some of her aides, US media reports say. (Photos by Brendan Smialowski and MANDEL NGAN / AFP)