President Biden and First Lady Jill hug as they enter the White House for the first time as the First Couple to the strains of "Hail to the Chief.''

US Sen.-elect Jon Ossoff apparently can’t wait to take office.

A few hours before the Georgia pol was set to be sworn in to the Senate along with Peach State colleague and fellow Dem Raphael Warnock, he tweeted a photo of the pair captioned, “Now representing Georgia.’’

A third new senator also is set to be sworn in this afternoon, Alex Padilla, Vice President Kamala Harris’s Dem replacement from California.

Warnock and Ossoff won their Senate seats in run-off elections earlier this month.

Padilla, California’s former secretary of state, was appointed to his Senate position by Gov. Gavin Newsom after former Sen. Harris and President Biden won the general election.

The Senate split is now 50-50 Democrats and Republicans, but Harris, as president of the Senate in her position as vice president, gets to cast any deciding vote in the event of a tie, so that swings control to the Dems.

Irish eyes are smiling on President Biden.Kin of the new commander-in-chief posed on Inauguration Day next to a mural of him in Ballina, Ireland, where Biden’s great-great-grandfather was born in 1832. The Blewitt family from left, Deirdre, Emily, Joe, Laurita, Brendan, Darragh and Lauren watch the Inauguration of their cousin Joe Biden on TV from their living room in Knockmore, Ireland. AP/Peter Morrison

President Biden and his extended family have left their motorcade and are making their way to the White House on foot.

It might take a while, as Biden keeps dashing off to greet people on the sidelines of the route.

No, you weren't seeing things -- those are current US soldiers dressed in Revolutionary War-era uniforms playing fifes and drums as part of today's presidential inauguration parade.The service members are part of what's known as the Old Guard Fife and Drum Corps, a unique unit with the 3rd Infantry Regiment out of Fort Myer, Va.The group played during President Biden's earlier Pass in Review at the Capitol, in which he ceremoniously surveyed his military.The unit's appearance is part of a longstanding tradition -- having participated in every presidential inauguration since John F. Kennedy.

Today’s Inauguration Day festivities are nothing like years’ past.The Presidential Inaugural Committee has ditched the large-scale celebration in lieu of a largely virtual “Parade Across America,” which is about to kick off.The event -- taking place in all 56 states and territories -- will be hosted by Tony Goldwyn, who played President Fitzgerald "Fitz" Thomas Grant III on ABC’s hit drama “Scandal.”The parade will feature a slew of performances and celebrity appearances, including from Jon Stewart, the New Radicals, Andra Day and DJ Cassidy.President Biden and Vice President Harris’ alma maters will also be represented -- the University of Delaware Drumline and Howard University Drumline will escort the pair from 15th Street to the White House.

A lot of "Parks and Recreation" content on social media today. President Biden appeared twice on the sitcom as himself, and Amy Poehler's character Leslie Knope was a massive fan.

The show's Twitter account and star Adam Scott both acknowledged the occasion

?s=20

In one of the most touching moments of the day, President Biden pays his respects at the Tomb of the Unknown Soldier in Arlington National Cemetery.Biden's beloved son, former Delaware Attorney General Beau Biden, did a stint in Iraq with the Army. He died of brain cancer in 2015. Accompanied by Vice President Kamala Harris, Biden saluted as he first stood in front of the massive sarcophagus, a tribute to fallen US soldiers, while a military band played the National Anthem. Harris had her right hand over heart. A large red, white and blue wreath with a bow was on a stand at the base of the monument. A lone military bugler then played "Taps." Lined up behind the president and vice president were former Presidents Obama, Bush, Clinton and and their wives.Biden's family was gathered to the rear of the former presidential couples. Getty Images/Chip Somodevilla

There is a ceremonial firing of cannons as President Biden arrives at Arlington National Cemetery.

Politicians went gaga for Gaga!West Virginia Sen. Joe Manchin tweeted out a photo of himself with the singer after she belted out the National Anthem at President Biden’s inauguration — and gushed over her ties to the state. The singer’s mom is originally from Wheeling.

Meanwhile, former DNC chair Donna Brazil captured the singer with House GOP Whip Steve Scalise

The president and First Lady are leaving the Capitol to head to Arlington National Cemetery for the traditional wreath-laying at the Tomb of the Unknown Soldier.Their presidential limo bears the license plate "46'' -- a nod to Biden as the country's 46th commander-in-chief.The First Couple is being followed in a separate vehicle by Vice President Kamala Harris and her husband. Joining the group at the cemetery will be former Presidents Obama, Clinton and Bush, along with their wives.

President Biden oversees the traditional Pass in Review -- where the new commander-in-chief ceremoniously inspects his troops from the steps of the Capitol building after his inauguration.Accompanied by Vice President Kamala Harris, Biden is standing on the East Front steps of the Capitol to review members of every US military branch -- who salute him officially for the first time as their commander.Included in the group is a fife-and-drum corps dressed in colonial-period costume. The tradition represents the peaceful transfer of power between the outgoing and incoming administrations.Military bands play as troops march by.AP