"Republicans Are increasingly concerned that President Trump's threat to build a border wall by declaring a national emergency might be repeated by a future president who sees climate change as an existential danger to the United States.

A number of Republicans, including Sens. John Thune of South Dakota and Marco Rubio of Florida, expressed dismay at the potential reverberations of issuing an emergency order to achieve a political victory.

'We have to be careful about endorsing broad uses of executive power,' Rubio said Wednesday on CNBC. 'If today the national emergency is border security, tomorrow the national emergency might be climate change.'"

Scott Waldman reports for ClimateWire January 11, 2019. [2]