CARSON CITY, Nev. (AP) — Two key players in the Republican and Democratic parties in Nevada are teaming up to host a clean-energy talk as the White House abandons a worldwide agreement to curb climate change and states are moving to the forefront of the fight.

Former Democratic Senate Majority Leader Harry Reid said Wednesday that he's bringing back a summit last headlined by President Barack Obama in 2015. This time, the co-host is a Republican — Gov. Brian Sandoval — a bipartisan move as Congress remains gridlocked on health care and other issues.

However, Sandoval is no newcomer to clean en...