President Donald Trump has attacked his own attorney general Jeff Sessions, challenging him to launch an investigation into the Obama administration for failing to do enough to stop the alleged Russian interference into the 2016 elections.
"Question: If all of the Russian meddling took place during the Obama Administration, right up to January 20th, why aren't they the subject of the investigation? Why didn't Obama do something about the meddling? Why aren't Dem crimes under investigation? Ask Jeff Sessions!" Trump tweeted.
In recent months, Trump has become more critical of federal law enforcement and has called senior officials at the FBI biased against him.
Trump has denied that Russia was involved in the 2016 election meddling.
But an indictment announced last week against 13 Russians and three companies described a sophisticated, multiyear Russian influence campaign designed to sow discord across the American democratic process.
Democrats say that the alleged Russina meddling benefited Trump, a claim refuted by the president.
Trump has consistently argued that such an alleged interference happened during the term of a Democratic president and thus this needs to be investigated.
Mueller has so far interviewed several of the Trump's former and present campaign officials.