WATCH: Bernie Sanders’ Response to Trump’s Speech to Congress

Bernie Sanders wasted no time responding to President Donald Trump’s speech to Congress. Watch his response above.

“Since the beginning of this year, we have seen unprecedented grassroots energy,” he said during his response. “…The Republicans are getting very worried. They’re not so cocky anymore about simply repealing Obamacare and they should be worried. The American people are standing up… And they’re saying, no you’re not going to repeal the Affordable Care Act…you’re going to improve it.”

He added, “We’ve got to guarantee healthcare to all people as a right, not a privilege.”

“Those of you who attended rallies and town hall meetings, keep showing up,” he said. “Only when millions of people stand up and fight … only then can we create the political revolution that will turn this country around.”

During Bernie’s video response, his speech was covered with “hearts” and “likes” on Facebook, as is pretty typical for most of the reactions to his videos:

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Bernie Sanders attended Trump’s speech earlier. He looked pretty happy and laid back when he first showed up.

WASHINGTON, DC - FEBRUARY 28: Sen. Bernie Sanders (D-VT) arrives to a joint session of the U.S. Congress with U.S. President Donald Trump on February 28, 2017 in the House chamber of the U.S. Capitol in Washington, DC. Trump's first address to Congress is expected to focus on national security, tax and regulatory reform, the economy, and healthcare. (Photo by Win McNamee/Getty Images)

Sen. Bernie Sanders (D-VT) arrives to a joint session of the U.S. Congress with U.S. President Donald Trump on February 28, 2017. (Getty)

But during the speech, his demeanor changed a bit:

Vermont Sen. Bernie Sanders (C) listens to remarks by U.S. President Donald J. Trump during his address to a joint session of Congress, at the U.S. Capitol, in Washington, DC, February 28, 2017. Trump, in his first address to Congress, laid out his agenda on issues like immigration, the economy, foreign affairs and health care. / AFP / Mike Theiler (Photo credit should read MIKE THEILER/AFP/Getty Images)

Vermont Sen. Bernie Sanders (C) listens to remarks by U.S. President Donald J. Trump during his address to a joint session of Congress, looking not-so-happy. (Getty)

What did you think of Bernie’s response to Trump’s speech? Let us know in the comments below.

If you missed Trump’s speech, you can watch the whole thing in the story below: