Biden headlining Udall fundraiser

Vice President Joe BidenJoe BidenClinton urged to go liberal with vice presidential pick Biden will host cancer research summit in DC Reid throws wrench into Clinton vice presidential picks MORE will headline a fundraiser for Sen. Mark UdallMark UdallEnergy issues roil race for Senate Unable to ban Internet gambling, lawmakers try for moratorium Two vulnerable senators lack challengers for 2016 MORE (D-Colo.) later this month.

He'll attend a May 27 fundraiser hosted by Udall and the Colorado Democratic Party, according to an invitation obtained by The Denver Post.

The Colorado Senate race became competitive with the entry of Rep. Cory GardnerCory GardnerOvernight Defense: Pentagon chief fears sequestration's return Overnight Cybersecurity: Watchdog report dings Clinton email security Senate GOP ties Iran sanctions fight to defense bill MORE (R-Colo.), a top GOP recruit, into the race earlier this year.

Udall has kept up a steady fundraising pace and ramped it up this past quarter, bringing in more than $2 million and closing out the quarter with $5.9 million cash on hand.

But Gardner reported raising $1.4 million, $1.2 million of that in the first month of his campaign, and had $2.1 million cash on hand at the end of the quarter. At that pace, Gardner is well on his way to catching up to Udall’s fundraising lead.

Biden's visit to the state is intended to help Udall maintain it, as he prepares for a tough fight this fall. 

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