WASHINGTON (CNN) – The day after President Obama sent an e-mail declaring his support for Scott Murphy's congressional bid, the Democrat released a radio ad featuring Vice President Joe Biden.
In the ad, which started running on Thursday in New York's 20th congressional district, Biden referenced his local roots.
"As a graduate of Syracuse Law School, I not only root for the Orange, I root for Upstate New York as well," Biden said in the ad. "That's why this special election you'll be holding next Tuesday, March 31st is so important to me. I'm supporting Scott Murphy for Congress, and so is President Obama."
Murphy is running against Republican New York assemblyman Jim Tedisco in a highly competitive race to fill Sen. Kirsten Gillibrand's vacant congressional seat.
The ad was funded by Murphy's campaign, but both national parties and some independent fundraising groups have poured money into advertising and sent star power to stump in the district in advance of the special election.