The cartels have to infiltrate police and border agencies to successfully use ports of entry. That is where the politicians play their role. Getting the cartels people into key positions.
Clintons worked key positions in AR State (e.g. “their Coroner”) and then in Fed arena.
Hussein worked key positions all over admin and military for MBros. incl. Capital Police, FBI, EPA, IRS, UN, and presumably Borders & Customs.