Watch: President Trump and Hillary Clinton have a chilly reunion at Bush funeral

President Donald Trump arrived at the funeral for former President George H.W. Bush and did not receive a warm welcome from his former presidential competitor, Hillary Clinton.

Trump and first lady Melania arrived at the the National Cathedral in Washington, D.C., and took a seat next to former President Barack Obama and former first lady Michelle Obama, who greeted them at the solemn event.

Former President Bill Clinton greeted the first lady and the current president.

But while Hillary Clinton responded with several head nods to the current first lady, she disdainfully ignored President Trump.

CNN reported that Trump had not interacted with either Clinton or Obama since his inauguration two years ago.

Many remarked on social media that it was likely the constant criticism from Trump against "crooked Hillary" that precipitated her chilly, stone-faced response.

"Did you ever see an investigation more in search of a crime?" the president tweeted in November. "At the same time [special counsel Robert] Mueller and the Angry Democrats aren't even looking at the atrocious, and perhaps subversive, crimes that were committed by Crooked Hillary Clinton and the Democrats."

"A total disgrace!" he added.

Here's the video of the awkward interaction between Trump and Hillary:

Former President George W. Bush gave a touching and emotional eulogy for his father at the very moving event.

"When the history books are written," he said, "they will say that George H. W. Bush was a great President of the United States."