But the side-by-side images of Friday's ceremony alongside the 2009 inauguration of President Barack Obama show a significantly smaller crowd on the National Mall for Trump than for Obama. There ...

At left, an image from the 2009 inauguration of President Barack Obama’s on the National Mall in Washington, D.C. 2017. At right, the image of President Donald Trump’s inauguration.

Former President Barack Obama has finally broken his MAGA 2.0 silence, reminding a sold-out crowd that his first inauguration ...

Barack Obama mocked Donald Trump’s crowd size obsession and said the 2020 election wasn’t won by 'the guy complaining about ...

Dueling crowds. Photos from the National Park Service show the crowd at Barack Obama’s inauguration in January 2009 (top) and the audience at Donald Trump’s ceremony in January 2017 (bottom).

Record-Breaking Inauguration Crowd Photo: Getty Images Thomas Meneguin At Obama’s first inauguration in 2009, around 1.8 million people attended the historic event.

Crowd-size experts estimate the number of people on the National Mall for Obama's first inauguration was between 800,000 and 1 million. Trump drew about a third of that total in 2017, they say.

President-elect Donald Trump's inaugural crowd on Jan. 20 is expected to be half of what President Barack Obama's was back in 2009, though Trump's gathering should still be pretty big.