In his latest letter to constituents, Congressman Raul Labrador argues to eliminate federal grants for sanctuary cities, like San Francisco, that ignore U.S. immigration laws:

The last words Jim Steinle heard from his daughter were, “Help me, Dad.” Kathryn Steinle was walking arm-in-arm with her father on the San Francisco waterfront when she was killed by a gunshot to the chest. Juan Francisco Lopez Sanchez is charged in the July 1 shooting, a preventable tragedy that has captured worldwide attention. Sanchez was on Pier 12 because of lax border security. He’d already been convicted of seven felonies, including heroin possession, manufacturing narcotics and illegal re-entry. Five times, Sanchez was deported to Mexico. There should have been a sixth. Instead, Sanchez was released from jail in April, after the city ignored a U.S. Immigration and Customs Enforcement (ICE) request that he be detained for pickup. San Francisco is among over 200 “sanctuary cities” refusing to cooperate with the federal government in the enforcement of immigration law. Thursday morning, I listened to Mr. Steinle tell the horrific story of his 32-year-old daughter’s death at a hearing of the Judiciary Subcommittee on Immigration and Border Security. More here.

Question: Should the US abolish federal grants to "sanctuary cities," like San Franciso, that refuse to observe immigration laws?