Campaign finance records show that three Democrat candidates in the 3rd Congressional District each raised more than $170,000 in contributions during the last quarter.

But Republican Rep. Kevin Yoder continued to maintain a huge fundraising advantage over any potential Democrat challenger.

Six Democrats are vying for their party's nomination in the Kansas City-area district.

The top Democrat fundraisers for the quarter were labor attorney Brent Welder, with almost $179,000 in contributions; teacher Tom Niermann, with more than $174,000, and attorney Sharice Davids, with almost $172,000.

Welder had the most cash on hand at the end of June, with $399,000. Niermann had about $385,000 and Davids, nearly $146,000.

But Yoder ended June with almost $1.9 million in cash. He raised about $453,000 in contributions, most of it from political action committees.