Proving harm done to states by the declaration will likely be key to the case.
Many of them are expressing hesitation with or outright anger at Trump’s move, which is meant to free up money to build a wall along the nation’s southern border.
The Democratic Party response to President Trump's second State of the Union.
President Donald Trump will address a joint session of Congress tonight. Here's who Colorado lawmakers are bringing.
In an hour and a half-long speech, President Trump called for border security, heralded the country's economy and denounced late-term abortion laws.
The number of refugees resettled in the United States and in Colorado has sharply declined, even as global need is at an all-time high.
An Associated Press investigation found there could be more premature deaths, greenhouse gas emissions and other impacts.
Gun-control advocates are rejoicing in the gun industry’s misfortunes of late and chalking it up to not just shifting attitudes among Americans but a shift in elected political leaders.
Trump offered on Saturday to temporarily extend protections for young immigrants brought to the country illegally as children and those fleeing disaster zones in exchange for $5.7 billion for his border wall.