Independently verified all three cited sources as real, live, and accurately quoted. Within the first week of taking office (Jan 25, 2017, day 5), Trump signed Executive Order 13768, which reinstated the Secure Communities program and directed expansion of section 287(g) agreements deputizing state and local police as immigration officers -- exactly the 'joint operations with local, state and federal law enforcement' promised. ICE interior arrests rose 30% in FY2017 (143,470 total, per Pew), and 74% of FY2017 arrests were of immigrants with prior criminal convictions, aligning with the criminal-alien focus of the promise. This is active leadership/driving of the promised effort via executive action, so CHAMPIONED (+0.75) rather than a single supporting vote. It is not FULL because the implied 2-million scale of removals was never achieved, total removals stayed below Obama-era peaks, and parts of the order (sanctuary-jurisdiction funding) were enjoined. A president of either party with this identical first-week executive record would earn the same label under a neutral standard. Confidence 0.85 reflects strong sourcing with the only residual uncertainty being the FULL-vs-CHAMPIONED line on a 'begin day one' promise.