A least two contenders in the competitive 1st district were raking in the big bucks in the second quarter of the year.

Freshman Rep. Tim Walz (D) announced he raised about $430,000 from April 1 to June 30, and had $1.2 million in cash on hand.

Meanwhile, Mayo Clinic physician Brian Davis (R) was not far behind, raising $391,600 in the past three months and ending June with $376,700 in cash on hand. About $180,000 of his fundraising is out of his own pocket, according to Davis campaign manager Brad Biers.

Davis was endorsed by Minnesota Republicans in late March, boosting his coffers even though he has a primary with state Sen. Dick Day (R) on Sept. 9. Both the state party and the National Republican Congressional Committee contributed to Davis, according to his campaign.

Day’s campaign manager, Chris Johnson, said Monday that his financial report was not yet available.

Walz won his seat with 53 percent of the vote in 2006, defeating six-term Republican Rep. Gil Gutknecht in a district that voted for President Bush with 51 percent in 2004.