A new Reuters poll shows Republican Carly Fiorina just four points behind Sen. Barbara Boxer (D) in California's Senate race. 

Boxer leads with 45 percent of the vote to Fiorina's 41 percent with 13 percent of respondents undecided. It's a poll of 600 registered California voters. 

The new numbers suggest there hasn't been much movement in the race during the past month. In early June, Rasmussen gave Boxer a five-point lead. And in late May, an L.A. Times poll had Boxer up six points. 

In Washington, D.C., on Tuesday, Fiorina told reporters she wanted to keep the focus on jobs and the economy in her race with Boxer. But she also backed the idea of repealing the recently enacted healthcare law.