UPDATE: On Thursday, the Supreme Court sided with Republican operatives and their Leonard Leo-tied legal team, partially granting their request for a 2022 Arizona voter-suppression law to go into effect ahead of the November election. The ruling will significantly limit when Arizona voters can register to vote without proof of citizenship.

Behind a new slate of GOP lawsuits aimed at suppressing voters in electoral battleground states is a cadre of lawyers tied to Leonard Leo — the judicial activist widely credited with engineering the Supreme Court’s conservative supermajority.