Former DHS Aide Lewandowski Under Investigation Corey Lewandowski, a former political adviser to Donald Trump and a top aide at the Department of Homeland Security, is under criminal investigation for allegedly profiting from his role in the US government. The Department of Justice (DoJ) has launched an investigation into Lewandowski's activities, although no subpoenas or other legal demands have been issued yet. Lewandowski, who served as a top aide to Kristi Noem during her tenure as homeland security secretary, is accused of signing some DHS contracts despite having questionable legal authority as a special government employee. According to a DHS official, certain grants and contracts, including those involving the Federal Emergency Management Agency, were put on hold at Lewandowski's direction. This investigation marks a rare move by the DoJ against an ally of the US president. The justice department under Trump has previously investigated several prominent critics of the president, but investigations of people close to Trump have been relatively rare.