Sen. Jeff Merkley (D-Ore.) has raised $1.2 million for his reelection campaign since May 1, bringing his second-quarter fundraising total to $1.8 million.
Merkley faces a challenge from Republican Monica Wehby in the fall, as the freshman senator tries to hold onto his seat. Merkley has been leading in the polls, but Republicans have hoped to put the seat in play.
Merkley has spent $1.5 million over the last two months, his campaign reports, in large part due to the aggressive ads he has been running against Wehby, negative spots that seek to link her to the national Republican Party.
Wehby's campaign has not yet released second-quarter fundraising totals, but the Portland neurosurgeon reported raising just under $600,000 last quarter.