Eliza Collins

USA TODAY

PHILADELPHIA — Michelle Obama’s speech Monday night got widespread praise, but it was the lack of response from the Republican nominee that was particularly notable.

Donald Trump had been firing off tweets about each of the main speakers during the Democratic convention Monday night except for one — the first lady. The Republican National Committee, which has relocated its opposition research arm to Philadelphia this week, also was silent on her speech.

Why?

"I think the first lady is off bounds," Republican National Committee spokesman Sean Spicer told reporters in Philadelphia. "She was not giving, for the most part, a partisan speech, and I think the first lady is off limits."

"I think that she gave a great speech if you're a Democrat," Spicer said. When pressed further about his thoughts, he said: "I think Michelle Obama has been a phenomenal first lady, she's a great wife, she's a great mother."

Top Republicans may have kept quiet, but the people of the Internet were talking about her speech.

The most retweeted tweet of Day 1 of the convention was President Obama praising his wife.

And the first lady also owned the top 3 Twitter moments, in order below:

1. Her official endorsement of Clinton when she said “Let’s get to work."

2. When Obama talked about the White House being built by slaves.

3. And her joke about the problems of the world not being able to fit into 140 characters, hitting at Trump’s use of Twitter.

But despite all the praise of Obama, it was Vermont Sen. Bernie Sanders who was the most tweeted-about speaker. The first lady followed.

Massachusetts Sen. Elizabeth Warren got third place. New Jersey Sen. Cory Booker was the fourth-most-tweeted-about speakers of the night.

'Hillary Clinton must become the next president,' Sanders tells convention

Elizabeth Warren blasts Trump for 'fanning flames of fear and hatred'

Sen. Cory Booker calls for unity in prime-time DNC speech

Google searches mirrored Twitter. Sanders also owned Google — he was searched twice as much as Obama, who came in second, Warren was third and Booker was fourth. Singer Paul Simon, who performed last night, came in fifth.

And Sanders' mention of Citizens United — the Supreme Court ruling that opened up the flow of money into politics — had a lot of people asking about the ruling: It was up 650%.

Other burning questions people searched on Google.

1. What is Citizens United?

2. Who built the White House?

3. Did slaves build the White House?

4. How old is Bernie Sanders?

5. What is TPP?

Ten million people used Facebook to generate 39.7 million interactions about the convention over the last 24 hours on Facebook.