Poll shows Boxer may be vulnerable to Fiorina challenge

Sen. Barbara BoxerBarbara BoxerCalif. Dem missed votes, sit-in on trip to Spain Hispanic Caucus PAC looks to flex its muscles in 2016 Dems who sat out the sit-in offer array of reasons MORE (D-Calif.) may be looking at a tough reelection challenge from former Hewlett-Packard CEO Carly Fiorina, if one poll released Friday is to be believed.

45 percent of Californians said they'd support Boxer in a matchup with Fiorina in a Rasmussen poll -- well below the 50 percent threshold considered healthy for incumbent candidates.

41 percent of Californians told pollsters they'd support Fiorina, while seven percent were undecided.

The poll comes on the heels of a few bits of bad news for Boxer as of late, including her controversial confrontation with the leader of the U.S. Black Chamber of Commerce at a committee meeting, and an unflattering profile depicting her as aggressive and demanding.

Boxer was first elected in 1992, and would face reelection next year.

The poll, conducted July 22, has a 4.5 percent margin of error.

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