The progressive firebrand is scheduled to host a fundraiser for her Oregon colleague on May 28 at the Hilton hotel in downtown Portland. Warren is well-liked by the base and has been a highly effective fundraiser for Democrats.
"I'm proud to have Elizabeth's support and glad Oregonians are going to have a chance to see up close how terrific she is," Merkley said in a statement. "She is a champion for working people across this nation and a close ally of mine on so many issues, from the battle to reform Wall Street to our fight to bring down the cost of college loans. It's a privilege seeing her in action in the Senate and I'm glad to have her join me here in Oregon."