Bernie Sanders: Hillary's campaign is in "serious trouble"

Sen. Bernie Sanders (I-Vt.) says Democratic presidential rival Hillary Clinton is in “serious trouble” citing her stepped up attacks against him.

“Secretary Clinton and her campaign is in serious trouble,” Sanders told reporters after a campaign stop in Iowa, according to multiple reports on Monday. “So obviously in that scenario what people do is start attacking.”

Sanders noted that Clinton was seen as the presumptive Democratic nominee months ago, but that polls now show them “locked in a very difficult race” in Iowa and New Hampshire.

“Suddenly Bernie Sanders is not a nice guy. That is not surprising when you have a Clinton campaign that is now in trouble and now understands that they can lose,” he added, according to reports.