An estimated 45.6 million people tuned in to watch President Donald Trump deliver his State of the Union address in Washington, D.C., on Tuesday, Jan. 30, 2018.

While coverage varied by network, 12 aired live coverage from approximately 9:00 p.m. ET to 10:30 p.m. ET.

In terms of the social nature of the address, the State of the Union 2018 was the No. 1 most social program on Jan. 30, 2018. There were 21 million total interactions across Facebook, Instagram and Twitter about the State of the Union 2018. Of the 21 million total interactions measured, 41% occurred on Facebook, 7% occurred on Instagram and 52% occurred on Twitter.

The most social moment on Twitter occurred at 10:04 p.m. ET with 68 thousand interactions as viewers Tweeted in the minutes following Trump’s four pillar plan on immigration reform. The top hashtags on Twitter were: #sotu, #stateoftheunion, #maga and #stateofourunion.

The chart below highlights the sum of the average viewing audience for the networks that aired the address.

2018 Networks Included: ABC, CBS, FOX, NBC, Estrella, Telemundo, Univision, CNN, FOX Business, FOX News, MSNBC and PBS.

Below is a historical look at past State of the Union addresses.