NBC: Democrats Worried That Clinton’s Messaging Keeps Changing

Hillary Clinton's inability to nail down a clear campaign message is worrisome to Democrats, NBC's Kristen Welker reported Wednesday on The Today Show.

Her messaging "seems to keep shifting," Welker said, while pointing out general election rival Donald Trump's "Make America Great Again" slogan has been clear since his campaign launch.

Clinton has trotted out each of the following:

"I'm fighting for everyone who's ever been knocked down but refused to be knocked out."

"Breaking down barriers has been one of the major themes of my campaign."

"We are stronger together in facing our internal challenges and our external ones."

Welker asked campaign manager Robby Mook about worries from Democrats that her messaging has been "somewhat muddled."

"Has that hurt her with voters?" Welker asked.

"I don't think the messaging has been muddled at all, particularly the last few weeks," Mook said. "Our country is going to be stronger when every single American can live up to their God-given potential."

In addition to Trump's fiery tone, Sen. Bernie Sanders' (I., Vt.) far-left populism has allowed him a clear voice on the campaign trail. The one-two punch of their attacks on Clinton in the last month has hurt her in the polls as she tries to put away the Democratic nomination.

Clinton is "clearly concerned" about a potentially embarrassing loss to Sanders  in California, adding multiple campaign stops there. She was also under fire on Tuesday for not having held a formal press conference in months.