‘In its investigation of Russia’s interference in the 2016 election, the Senate Intelligence Committee has spent more than a year trying to follow the money. But its efforts, unparalleled on Capitol Hill, have been hampered by a surprising force: the US Treasury Department, which has delayed turning over crucial financial records and refused to provide an expert to help make sense of the complex money trail. Even some of the department’s own personnel have questioned whether Treasury is intentionally hamstringing the investigation.’