Former Sen. Bob Kerrey (D-Neb.) brought in more than $900,000 in first month since entering the race to replace retiring Sen. Ben Nelson (D-Neb.), his campaign announced Friday.

Kerrey's haul for the first quarter of 2012 exceeded that of any of the other candidates who have reported their fundraising, including GOP front-runner Jon Bruning, who raised about $530,000. Kerrey announced his campaign in late February, giving him just one month to raise cash before the end of the quarter.

"It’s a clear sign that Nebraskans are tired of ‘politics as usual’ and want to elect a leader who will tell the truth and cross party lines to address the serious problems we face as a nation," Paul Johnson, Kerrey's campaign manager, said.

Kerrey also burned through a good chunk of what he raised so far, ending the first quarter with about $550,000 in the bank.

Kerrey has already gone on the air with campaign ads, keeping up with the Republicans, who have all launched ads for their campaigns.

The Hill rates this race as leaning Republican.