Jeffrey Sachs says President Trump is acting with impunity in destroying U.S. alliances and trading partnerships: "Congress must urgently reassert its constitutional powers before Trump's erratic behavior ruins the U.S.... and world economy.

SIPA lecturer Christopher Sabatini has joined the Chatham House as senior fellow for its Latin America, U.S., and the Americas Program.

If President Trump wanted to readmit Russia to the G7, says Stephen Sestanovich, he would have to take seriously the reasons the nation was disinvited in 2014. "On this, as far as I can tell, the president is not actually trying to address the problem."

BP's sale of more than $5 billion of Alaskan land "reflects just how dramatically the U.S. oil sector has shifted, as the outlook for Alaska... has dimmed relative to shale and the Gulf of Mexico," says Jason Bordoff.

In U.S. cities, technology officers in the C-suites are helping to recast government as a modern service provider that is responsive to residents while anticipating what matters to them, writes Hollie Russon Gilman.

In a 2018 study, Alexander Hertel-Fernandez et. al. concluded that anti-union right-to-work laws caused the Democratic vote share to drop by 3.5 percent in states that passed such laws.

As U.S. CEOs pledge greater commitment to social responsibility, Joseph Stiglitz questions whether the country can truly expect more to come. "There are reasons to believe that they are being more than a little disingenuous," he writes.

Former New York City Mayor David Dinkins discusses his mayoralty and his lasting accomplishments.