03/21/2012 02:24 pm ET

James King, Elizabeth Warren Rival, Drops Out Of Massachusetts Senate Race

It's a great week to be Elizabeth Warren.

On Tuesday, a new poll showed her leading Scott Brown in Massachusetts's heated U.S. Senate race. Now, one of her challengers has quit the race.

Democrat James King, a corporate lawyer, announced on Wednesday his decision to drop out and endorse Warren, The Republican reports.

"We looked at our goals of defeating Scott Brown and rebuilding Sen. Ted Kennedy's legacy, and decided that the best way to accomplish that at this point is to support Elizabeth Warren," he told the paper.

King is the 5th candidate to drop out of the primary. Warren's sole challenger in the Democratic field is Marisa DeFranco, an immigration lawyer.

It's no surprise that Warren's Democratic competitors are leaving the race. Not only is she a well-known consumer advocate, her campaign has fundraised a staggering amount of money. In just one day in January, she raised $1,000,000.