What they're saying: "It is terribly important that we listen to and take seriously what Donald Trump is saying," Sanders said in remarks at George Washington University in D.C.
- "Let me make this clear to Donald Trump: Too many people have fought and died to defend American democracy and you are not going to destroy it."
- "Today, under Donald Trump, we have a president who has little respect for our constitution or the rule of law," Sanders continued. "Today, that peaceful transition of power, the bedrock of American democracy, is being threatened like never before."
Sanders said this election is bigger than Trump vs. Biden. "This is not just an election between Donald Trump and Joe Biden," he said. "This is an election between Donald Trump and democracy — and democracy must win."
"The United States is the oldest continuous democracy in the modern world. We held elections in the middle of a Civil War in 1864. We held free and fair elections during World War I, during the Great Depression, and during World War II. After all of those elections, held in extremely difficult circumstances, the loser acknowledged defeat and the winner was inaugurated and took office.
Sen. Bernie Sanders
Why it matters: Democrats have little power to stop President Trump and Republicans in the Senate, so they have to get out and make clear to the public that they've had enough and they're ready to fight.
- On a Thursday call with reporters, Biden's deputy campaign manager and communications director Kate Bedingfield said: "Joe Biden has participated in a peaceful transition of power before. He certainly will this time."
The big picture: Democrats are watching their Republican colleagues move to jam through President Trump's Supreme Court nominee before the election, while he's also falsely claiming there's an abundance of voter fraud happening with absentee ballots.
- Trump told reporters this week that part of his urgency to quickly push through a replacement for the late Justice Ruth Bader Ginsburg is in anticipation of a situation where the Supreme Court may have to decide the result of the 2020 election.
- Trump has said that mail-in voting poses the "biggest risk" to his re-election prospects, and claimed, without evidence, that widespread mail-in voting would somehow rig the election against him.
Go deeper:Sanders: America should prepare for Trump's refusal to concede
