CLIMATE DECISION: Barring a last-minute change of heart, President Trump is expected to announce today that the U.S. will withdraw from the 2015 Paris climate change agreement, an achievement touted as among the most significant of his predecessor Barack Obama.

Last night, the president tweeted “I will be announcing my decision on Paris Accord, Thursday at 3:00 P.M. The White House Rose Garden. MAKE AMERICA GREAT AGAIN!” If the president decides to pull out of the agreement, it would fulfill a promise Trump made on the campaign trail, but would also put the U.S. in the company of Nicaragua and Syria, the only other nations that have not signed on to the pledge to curb carbon emissions in an effort to slow global warming.