The short answer is that they were buried by the people he appointed to positions within his administration, and then they were buried further by our compromised Attorney General, Jeff Sessions.
Whatever Became of the Obama Scandals? Here’s What. – Real Clear Politics
When Donald Trump took office promising to “drain the swamp,” many Americans expected him to release an avalanche of information and kick-start investigations into scandals from the Obama administration and Hillary Clinton’s campaign.
That hasn’t happened. The defining moment so far is the Justice Department’s recent decision not to pursue criminal charges against Lois Lerner, the IRS official at the center of alleged efforts to muzzle advocacy groups, especially conservative ones.
“There has been a remarkable lack of accountability,” said Tom Fitton, president of the conservative watchdog group Judicial Watch. “Today, you would think government is defending the Hillary Clinton administration.”
Some controversies from the last administration do have staying power. There are active investigations into the apparently widespread spying on Americans during the Obama years, including the “unmasking” of Trump associates in intelligence reports. But political storms with still-unanswered questions have faded from prominence, in part because Obama is no longer in power and the Trump era has been tumultuous.
The lack of action also suggests a deeper issue: how the permanent state protects itself. Even a new administration vowing change inevitably becomes part of it.