It happened again: These 20 House members, mostly Republican, voted against millions in funding for their own districts

• 20 House members, mostly Republican, voted against federal funding for their districts.
• It shows the limits of the "earmark" process, which aims to incentivize lawmakers to vote for bills.
• "When I cast a vote on a bill, it has to be reflective of my core principles," said one Republican.

As Rep. Clay Higgins walked toward the House floor to vote on a $1.2 trillion government funding bill on Friday, the Louisiana Republican explained why his "earmarks" couldn't get him to vote yes.