Hill.TV's Krystal Ball: Failure to embrace Sanders as nominee would 'destroy' Democratic Party

Hill.TV host Krystal Ball is calling on the Democratic Party to rally behind Sen. Bernie SandersBernie SandersWarren, Daines introduce bill honoring 13 killed in Kabul attack trillion tax hike the opposite of 'good investment' Progressive groups call for Puerto Rico Fiscal Control Board to be abolished MORE (I-Vt.) if he becomes the nominee, warning that the failure to do so would hurt the party in the long run.

“If Sanders is headed to winning a plurality or majority of delegates and you take it from him through superdelegates or rules changes or other dirty tactics, you will absolutely destroy the Democratic Party," Ball, a Sanders supporter, said Tuesday.

"You will destroy the idealism and political engagement of the young people who overwhelming back Sanders and could reinvigorate the Democratic, so please resist the temptation to come in over the top,” she continued.

Sanders’s allies have expressed outrage over of the the Democratic National Committee’s initial appointments that will oversee the rules and party platform at the nomination convention later this year.

Sanders’s supporters have taken issue with two names in particular: former Rep. Barney Frank (D-Mass.) and Hillary ClintonHillary Diane Rodham ClintonPennsylvania GOP authorizes subpoenas in election probe We must mount an all-country response to help our Afghan allies Biden nominates ex-State Department official as Export-Import Bank leader MORE’s former campaign chairman John Podesta.

Sanders’s campaign unsuccessfully sought to have Frank removed from the Rules Committee in 2016 over his connections to Clinton's campaign. 

Podesta, meanwhile, is not trusted by many on the left following some hacked emails in 2016 showing him asking a Democratic strategist where to “stick the knife in” Sanders.

Ball’s comments come after a new poll in New Hampshire showed Sanders with a 15-point lead over former Vice President Joe BidenJoe BidenOvernight Defense & National Security — Milley becomes lightning rod Democrats hope Biden can flip Manchin and Sinema On The Money — Presented by Wells Fargo — Democrats advance tax plan through hurdles MORE.

The latest American Research Group survey found the Vermont senator in first place at 28 percent support, followed by Biden at 13 percent.

Former South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegPete and Chasten Buttigieg welcome twins Coalition urges Democrats to restore billion in transit funding Say it ain't so, Joe MORE came in at 12 percent, with Sen. Elizabeth WarrenElizabeth WarrenWarren, Daines introduce bill honoring 13 killed in Kabul attack Boston set to elect first female mayor Progressive groups call for Puerto Rico Fiscal Control Board to be abolished MORE (D-Mass.) trailing at 11 percent.

However, there is some uncertainty over how many undeclared voters will turn out for the Democratic primary on Election Day.

Six percent of Democratic and independent voters in New Hampshire said that they were undecided.