President Donald Trump was inaugurated as the 47th president of the United States on Monday, marking a historic return to office as he became the oldest person elected and only the second to serve two non-consecutive terms. The inauguration was attended by several high-profile guests, including three former presidents and numerous billionaires.

In a series of sweeping executive actions shortly after his swearing-in, Trump announced he would issue pardons to the vast majority of those convicted in connection with the January 6 riots. Specifically, he pardoned nearly 1,500 individuals and ordered charges against others to be dropped. This move underscores Trump's continuing support for the individuals involved in the Capitol unrest.

Alongside the mass pardons, Trump signed numerous immigration-related executive orders intended to restrict birthright citizenship. He proposed a policy stating that children born in the U.S. to undocumented immigrants would not automatically receive citizenship, a decision likely to face significant legal challenges.

During his inaugural address and subsequent speeches, Trump reiterated contentious policies including declaring a national emergency on immigration, aiming to deploy troops to the southern border, and advocating for energy independence with a promise to lift restrictions imposed during the Biden administration. He characterized his approach as reclaiming American sovereignty.

Elon Musk, who was present at the inauguration and serves in a newly created Department of Government Efficiency, displayed his alliance with Trump, particularly as the administration plans various changes to federal policy and regulations.

The newly inaugurated president set ambitious goals in celebrating American national pride, declaring an aspiration for "American astronauts to plant the stars and stripes on the planet Mars" while referencing the Panama Canal, promising to reclaim it for the United States.

The inauguration took place indoors at the Capitol Rotunda, a necessary change due to severe cold weather, marking the first time since 1985 that an inaugural parade was held inside. The event included performances by notable artists, with country singer Carrie Underwood singing "America the Beautiful" as part of the ceremony.

As Trump embarks on this term, he faces a politically divided landscape, with his return eliciting a range of reactions across the political spectrum, especially regarding his pardons and proposed policies. The nationwide implications of his decisions will be scrutinized by supporters and opponents alike as he moves forward with his administration's agenda.

For continuous updates on this historic inauguration and more, visit Forbes.