Senate Majority Leader Mitch McConnell and 21 other Republicans urged President Donald Trump on Thursday to follow through on his campaign pledge to pull out of the Paris climate accord.

The GOP senators sent a two-page letter to the White House saying that remaining in the international agreement signed by Trump's predecessor pledging to reduce carbon emissions could fuel legal challenges to the administration's push to roll back environmental regulations.

Most of the senators who signed are from states that depend on the continued burning of coal, oil and gas. That includes Oklahoma Republican Sen. James Inhofe and others who, like Trump, have suggested the scientific data showing the Earth is warming due to man-made carbon emissions is a hoax.