Burton criticized the Bureau's practice of transporting horses thousands of miles and keeping them in pens and said the cost of the program has more than tripled in the last 10 years. Rep. Jim MoranJames (Jim) Patrick MoranDems face close polls in must-win Virginia Billionaire Trump donor hires lobbyists to help vets Lawmakers: Chaffetz has a point on housing stipend MORE (D-Va.) agreed and said the Bureau should control the size of herds through contraception, a less costly alternative.

Rep. Cynthia LummisCynthia Marie LummisLobbying world Female lawmakers flee House for higher office, retirement Despite a battle won, 'War on Coal' far from over MORE (R-Wyo.) opposed Burton's amendment and said Congress has caused problems by preventing the slaughter of wild horses. But Burton's amendment was approved regardless.

Both amendments were considered as part of H.R. 1, the GOP's FY 2011 spending bill, which the House is considering throughout the week.