ProPublica announced today that Isaac Arnsdorf will join its staff as a reporter covering the Trump administration. He will start on May 8.

Arnsdorf comes to ProPublica from POLITICO, where he has delivered investigations and accountability stories focused on money and politics. His recent work includes revealing that the transition wasn't following its own ethics code; tracing, up the chain of command, immigration officers' noncompliance with court orders blocking Trump's travel ban; revealing how Trump's early executive orders skipped the usual vetting process; unmasking a pro-Russian lobbying effort targeting Congress; and, most recently, exposing Russian ties to Michael Flynn's pre-election lobbying contract. Arnsdorf also formerly wrote POLITICO Influence, a daily tip sheet covering lobbying, communications and the business of politics.

Before POLITICO, Arnsdorf covered energy markets in London and New York for Bloomberg News. His work has also appeared in the Washington Post, the Wall Street Journal, the St. Petersburg Times (now the Tampa Bay Times), and the Seattle Times.

“Isaac is one of the most tenacious, resourceful political reporters in the country,” said ProPublica managing editor Robin Fields. “He’s an exciting addition to our already growing government and politics team, and will help us continue to shine a light on corruption and hold power – at the very highest levels – to account."

"I'm thrilled to join ProPublica at a time when its mission — high-impact journalism in the public interest — is more critical than ever in modern history,” said Arnsdorf. “The current political environment challenges all journalists to step up in terms of speed, scrutiny and transparency, and ProPublica is best positioned to help lead the way."