The super PAC backing Biden spent $650,000 as part of a joint TV and digital ad buy.
Sanders said the plan will fall in line with the goals of the Green New Deal.
Ruffalo credited Sanders with bringing progressive ideas, such as Medicare-for-all, to the forefront in 2016.
“You know the numbers,” Biden said. “You guys got it all wrong about what happened.”
Under Buttigieg's $500 billion college affordability plan, public college would be tuition-free for households earning under $100,000.
The proposal targets companies like Amazon and Netflix that have paid no federal income taxes in recent years.
Rep. Alexandria Ocasio-Cortez endorsed Sen. Bernie Sanders for president last month.
Bloomberg vowed to support “taxing wealthy people like me,” but insisted that a tax on wealth “Just doesn’t work.”
David Samson said Bernie Sanders' letter to Major League Baseball is full of "misinformation."
The 2020 Democratic presidential candidate noted that the teams will shut down even as the average MLB franchise generated $40 million in profits in 2018.
The ad comes almost one week after Warren ran a one-minute ad, titled “Elizabeth Warren Stands Up To Billionaires."
She argues a wealth tax would close the growing gap between the haves and have-nots.
China is not "playing ball" in the drive for lowering carbon emissions, Stuart Varney said.
"Maybe we should think about prosecuting them," Sander said.
The Vermont senator is outspoken about economic inequality, but he's estimated to be worth millions.
MSNBC and The Washington Post are scheduled to host the fifth Democratic debate in Atlanta on Wednesday night.
In the third quarter, Sanders outraised his Democratic opponents, raking in $25.3 million.
Alexandria Ocasio-Cortez and Bernie Sanders think they can 'kill two birds with one stone' with their $180 billion Green New Deal for public housing.
The tax penalty will increase for companies where the worker-to-CEO pay gap is higher.
Voters believe the industry was not sufficiently penalized for the financial crisis, analyst writes.