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administrative procedure act

Aug 4, 2026

Colorado joins multistate lawsuit challenging new federal tariffs

Colorado is part of a 25-state lawsuit challenging new federal tariffs on imports from over 80 countries, arguing the tariffs exceed legal authority.

Jul 16, 2026

Colorado joins coalition challenging federal wind project freeze

Colorado joins 19 attorneys general in lawsuit against the U.S. Department of Defense's freeze on land-based wind energy project reviews.

Feb 16, 2026

Weiser sues over $600M public health grant cuts

Colorado AG Phil Weiser joined three states suing the Trump administration over a directive to cut more than $600M in federal public health grants.

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Jul 21, 2025

Weiser joins lawsuit over public benefits restrictions

Attorney General Phil Weiser joins 19 states suing to block new federal rules limiting access to public benefits based on immigration status.