are some members of the special interest groups that back illegal immigration taking money from the Mexican drug cartels for their help?

I guess no one knows for sure but if not why aren't those borders shut down tight?

Ah, clueless one---the illegal immigration from Mexico is presently non-existent, because the Mexican economy has improved; the current immigration migration comes from CENTRAL America, and the drug cartels in Honduras and Guatemala causing terror among the population are, in fact, RUN BY the illegals who lived for a time in the USA and were deported in the 1990s. So we are reaping what we sowed basically.

Yes the GOP is taking money from the drug cartels to block comprehensive immigration reform

Very unlikely. Drug cartels don't use illegal aliens to smuggle their drugs. They use people who have legal tourist visas who swallow balloons full of drugs, or hire people who own registered boats and airplanes to drop the stuff off at undisclosed locations.

They are one and the same.