This Rep from Texas was new on the job as appropriations chair and found in documents he alone had the power of the purse. He told DOJ they had to follow the law or he would cut their budget. He stopped the sanctuary cities - told Loretta Lynch to uphold the law or she would lose funding for the top earners at the DOJ, but he would still fund the border patrol.
Lynch complied- the link below has hypertext links to videos of the hearing and letter from the DOJ.
Attorney General Lynch Confirms New Sanctuary Cities Policy During Hearing with Chairman Culberson
http://culberson.house.gov/news/documentsingle.aspx?DocumentID=398414
2:34 Minutes The Bill O’Reilly Show Discusses Cong. Culberson’s Action on Sanctuary Cities
https://www.youtube.com/watch?v=9n1NcyV55GA
The question is, how long has someone had this power in the House of Representatives and not utilized it?
Kudos to this congressman, please send him a word of thanks! (Use contact tab) http://culberson.house.gov/
Maybe he can let other HOR 'pubs in on his secret. That would be that they have the power of the purse, and were elected to use it.