Dem vows to fight Trump 'every step of the way' on national monuments

Sen. Tom UdallThomas (Tom) Stewart UdallEPA deputy says he's not interested in Pruitt’s job Latina Leaders to Watch 2018 Overnight Energy: Spending bill targets Pruitt | Ryan not paying 'close attention' to Pruitt controversies | Yellowstone park chief learned of dismissal through press release MORE (D-N.M.) is vowing to be a major thorn in President Trump's side over his newly announced plan to reclassify national monuments.

Udall said he doesn't think Trump "has the authority" to do so through executive order.

"If he attempts to do so, I will fight him every step of the way," Udall promised in a Wednesday statement.

Trump's executive order directs Interior Secretary Ryan Zinke to review whether the monument designations of up to 40 sites should be "rescinded, resized or modified in order to better benefit our public lands.” 

It signals the beginning of a major review of federal land use and monument designations’ impact on employment and land access for industry groups, companies and individuals.

Udall blasted the order, calling it another reversal by the Trump administration.

"Today's order represents yet another broken promise from President Trump. On the campaign trail, the president pledged to carry on the conservationist legacy of Teddy Roosevelt. But today he is beginning the process of going where no president before him has."

The review itself won't change the classification of any monuments, but Udall is still ready to take a stand.

"I won't stand by if the Trump administration opens the door to selling them off to the highest bidder," he said.