Group preps $4 million Super Tuesday push to stop Sanders

A new group of moderate Democrats trying to stop Bernie Sanders from winning their party’s presidential nomination is preparing to spend nearly $4 million hitting the Vermont senator in the final days before Super Tuesday, the group's executive director told NBC News.

Big Tent Project, which came together in recent weeks as some Democratic donors and operatives grew concerned about Sanders’ strength in Iowa and New Hampshire, has already spent about $1 million in Nevada and South Carolina on ads arguing Sanders is a radical who will lose to President Donald Trump.

Now, the group is quadrupling that amount to run digital ads and send mailers hitting Sanders in Virginia, Oklahoma, Arkansas, North Carolina, Texas, Minnesota, Massachusetts, and California, which all vote Tuesday.

"Big Tent Project is spending nearly $4 million on ads in Super Tuesday states to provide voters with the facts about Bernie Sanders radical record before they vote," said the group’s executive director, Jonathan Kott, a former top aide to West Virginia Democratic Sen. Joe Manchin.

One ad, which ran in Nevada and will now run again in Texas in both Spanish and English, accuses Sanders of allowing nuclear waste to be dumped near a poor Latino town in Texas (FactCheck.org calls the ad misleading).

Another says "socialist Bernie Sanders" would lead to "another four years of Donald Trump."

The group is a 501(c)4 nonprofit organization, meaning it may never have to disclose its donors.