Dark matter searches at LHC (SUSY dark matters)

SUSY dark matter - specifically electroweakinos - have been the leading candidate of the WIMP dark matter as well as the significant cause of the "WIMP miracle" excitement. While the search for the direct production is challenging due to the small production cross-section compared with the strongly-produced SUSYs, the large data sample size and the new search techniques in LHC Run2 starts to overcome the bottleneck, enabling one to probe drastically heavier electroweakinos these years. This talk will outline the search program at the ATLAS and CMS experiments, review what we have achieved/we couldn't achieve during the Run2, and discuss the strategy for the LHC Run3 and HL-LHC onward.