President-elect Donald Trump and Melania Trump spent Saturday and Sunday night before the inauguration at Blair House, a famous but rarely seen inside residence across Pennsylvania Avenue from the White House.

But let’s not forget the great US President Abraham Lincoln (16th,1861-1865), who championed the Telegraph during the American Civil War against slavery, making him the first president to embrace wired messaging technology, although the portable device had been around for almost two decades.

As Biden closes out more than 50 years of public service, including 36 years as a senator, eight as vice president, and four as president, the last year in office proved fateful in some of his longest-held friendships. Here are four friends Biden reportedly lost last year:

Presidential scholars say it's not worth it for Bush to get involved in public spats with Trump and say it will only hurt him in the history books.

The president-elect told attendees at a dinner Sunday night that he plans to sign close to 100 executive orders in the hours after he is sworn in.

Every president since Ronald Reagan has left a note for his successor, and President Biden is the first to write a letter to someone who is both his successor and the predecessor who left a note for him.

Today, @USNavy named two future Gerald R. Ford-class aircraft carriers as the future USS William J. Clinton (CVN 82) and USS George W. Bush (CVN 83). Like their namesakes, these two future carriers, and the crews who sail them, will work to safeguard our national security, remind… pic.twitter.com/lrLMW8fFFi

Hundreds of people are gathered inside the Capitol Rotunda, including several of Trump's Cabinet picks: Tulsi Gabbard, tapped for director of national intelligence; Robert F. Kennedy Jr., chosen to lead Health and Human Services; and Pete Hegseth, his pick to lead the Pentagon.