"I only came in second because of the fact that Cruz took a lot of votes away from Carson."
Sanders lost a point since January while Trump's support is unchanged.
Shkreli tweeted Friday that he was an "avid supporter" of Jeb.
Trump and his surrogates are fanning out across New Hampshire.
Carson blamed the mishap on back-stage audio problems.
"I just found that out five minutes ago.”
Trump fired back against an article in The Washington Post.
"Sometimes, you know, these rules need to apply to everybody," she said.
Clinton contrasted Sanders with a former rival, then-Sen. Barack Obama in 2008.
Sanders also pointed to his vote against the Iraq War.